Why the reward equals a full year, the rules for timing, and how to track your days.
Published September 2, 2026 · Reviewed by the Ihsabha Editorial Team
Ramadan ends with the joy of Eid al-Fitr, but the month that follows it, Shawwal, carries its own quiet opportunity that's easy to overlook once the celebrations wind down. A hadith recorded in Sahih Muslim describes the Prophet Muhammad (peace be upon him) explaining that whoever fasts Ramadan and follows it with six days of Shawwal has fasted as though they fasted an entire year. This guide covers where that hadith comes from, why the reward is calculated as a full year, the flexibility in how the six days are fasted, how Qada (make-up) days interact with them, and how to make sure you don't run out of month before you run out of days. It's a small, flexible act of worship with an outsized reward attached to it, which is exactly why it's worth understanding properly rather than letting the window quietly close each year.
The narration comes from the companion Abu Ayyub al-Ansari and is recorded in Sahih Muslim, one of the two most authenticated hadith collections in Sunni Islam. The Prophet ﷺ is reported to have said that whoever fasts Ramadan, then follows it with six days of Shawwal, will have fasted as if they had fasted for a lifetime (or, in another wording, an entire year) — a striking promise for what amounts to a relatively small additional commitment once Ramadan itself is complete. If you want to go further, Zakat on Cryptocurrency and Bitcoin: How Much You Owe explains this point in more depth. For an instant, practical check, the Six Days of Shawwal Tracker is ready to go.
Scholars explain the maths behind this through a broader Qur'anic principle that a single good deed is rewarded tenfold (referenced in Surah al-An'am, 6:160). A thirty-day Ramadan, multiplied tenfold, is credited as the equivalent of ten months of fasting. Six additional days, multiplied the same way, come out to roughly sixty days — the equivalent of two more months. Ten months plus two months adds up to a full twelve-month year, which is how this specific six-day practice comes to carry a reward equivalent to fasting continuously for an entire year, despite requiring only six actual days of fasting.
No. The six days do not need to be fasted consecutively or immediately after Eid al-Fitr — any six days within the month of Shawwal, in any order, fulfil the Sunnah. This gives real flexibility for travel, work commitments, health, or simply spacing the days out through the month rather than fasting them back-to-back right after the physical demands of Ramadan and the social demands of Eid celebrations. Some people prefer fasting Monday and Thursday, which carries its own separate recommended reward, effectively combining two Sunnahs across three weeks of Shawwal.
Scholars note that whoever still owes missed (Qada) days from Ramadan — due to illness, travel, menstruation, or another valid excuse — should generally prioritise completing those first, since the hadith specifies having fasted Ramadan in full before following it with six days of Shawwal. Fasting six voluntary days of Shawwal while Ramadan obligations remain outstanding is not sinful, but scholars differ on whether it earns the specific "full year" reward described in the hadith, since the wording presumes Ramadan has already been completed. It's also worth reading Zakat on Salary and Employment Income: How Much You Owe if this situation applies to you.
This is one of the more debated details among contemporary scholars, and a common practical question for anyone who owes several Qada days. Some scholars permit combining both intentions within the same fasted day — the fast counts toward your outstanding Qada obligation, while you also intend and hope for a share of the Shawwal reward. Others hold a stricter position: that the specific, full "year's reward" described in the hadith requires completing Ramadan's Qada separately first, and then fasting six entirely distinct days with the Shawwal intention alone, since combining intentions may not fulfil either act completely in this view. If you have Qada days outstanding, the safest approach — and the one most scholars recommend as best practice — is to complete Qada first, then fast six clean Shawwal days afterward, which avoids the disagreement entirely and secures both rewards without ambiguity. Rather than working this out by hand every time, the Six Days of Shawwal Tracker can handle the whole calculation for you.
Shawwal is a single lunar month following Ramadan, so its end date shifts each year relative to the Gregorian calendar, generally moving about ten to eleven days earlier annually. Knowing the exact Gregorian end date for your location — which depends on local moon sighting or calculation methods — helps avoid the common mistake of realizing too late in the month that there isn't enough time left to fit in all six days, especially if you're also trying to complete outstanding Qada days first.
Never lose count of your days. Ihsabha's Six Days of Shawwal Tracker shows exactly how many days remain until the window closes and tracks which days you've completed, and our Hijri-Gregorian Converter confirms the exact Gregorian dates for Shawwal in your location.
While the hadith itself is authenticated in Sahih Muslim and the practice is widely recommended across the majority of scholars and schools of thought — Hanafi, Shafi'i, and Hanbali jurists all affirm it as a recommended Sunnah — the Maliki school historically held a more cautious position. Imam Malik is reported to have considered it preferable not to fast these six days visibly or publicly, out of concern that people unfamiliar with the practice might mistake it for an extension of Ramadan itself, blurring the clear boundary between the obligatory month and the days that follow it. This wasn't a rejection of the hadith's authenticity, but a precautionary stance rooted in protecting the distinctiveness of Ramadan as a fixed, universally recognized obligation. In practice today, this historical nuance rarely changes how most contemporary Muslims approach the six days — the practice is fasted openly and widely across the Muslim world regardless of madhab — but it's a useful example of how scholars can affirm a hadith's authenticity while still differing on the best way to implement it in a given social context. You may also find it useful to check Zakat on Retirement Accounts and Pension Funds, which covers a related angle.
It's worth stating plainly, since it trips up some people new to the practice: the first day of Shawwal is Eid al-Fitr, and fasting on that specific day is explicitly prohibited — it's a day of celebration, not worship through fasting. The six days of Shawwal fasting begin, at the earliest, on the second day of the month, once Eid celebrations are complete. This is one more reason the six days don't need to be consecutive or immediate; the very first opportunity to fast doesn't arrive until Shawwal is already a day old.
Shawwal fasting doesn't exist in isolation — it's one of several recommended voluntary fasting practices that Muslims often combine across the Islamic calendar. Monday and Thursday fasting is recommended year-round and pairs naturally with spreading the six Shawwal days across three or four weeks. The White Days (Ayyam al-Beedh) — the 13th, 14th, and 15th of each Hijri month — offer another recurring opportunity, though Shawwal's own six days are a separate, one-time-per-year practice tied specifically to this month rather than a monthly recurring one. Someone who wants to maximize voluntary fasting during Shawwal without overcomplicating their schedule might simply fast every Monday and Thursday until six days are completed, which naturally satisfies the flexibility the hadith allows. You can use the Six Days of Shawwal Tracker to get the result instantly, with no manual math.
For someone starting from scratch with no outstanding Qada days, a simple plan might look like this: begin in the first or second week of Shawwal rather than waiting, fast two or three days per week (Monday and Thursday work well), and aim to finish within the first three weeks of the month, leaving a buffer in case of illness, travel, or simply needing to skip a planned day. For someone who does owe Qada days, the sequence should be: total up outstanding Qada days first, fast those on a similar two-to-three-day-per-week cadence, and only begin the six Shawwal days once Qada is fully cleared — checking the calendar to confirm there's still enough of the month left to comfortably fit all six days in afterward. This naturally leads to a related question, answered in Zakat on Cash and Bank Savings: How Much You Owe.
Fasting six more days so soon after a full month of Ramadan fasting is generally safe for healthy adults, but it's worth a brief word on easing back into it sensibly. The body has just spent thirty days adapting to a fasting rhythm, and for many people Eid brings a few days of richer eating and less structured meal timing, which can make the transition back to fasting feel different from mid-Ramadan fasting. Staying well hydrated in the hours between iftar and the next fast, eating a nutritious suhoor rather than skipping it, and not scheduling all six days back-to-back if it feels physically taxing are all reasonable adjustments — none of which affect the validity of the fast itself, since the flexibility in timing exists precisely to accommodate this kind of pacing. Anyone with a health condition that made Ramadan fasting difficult should apply the same caution and, where relevant, the same medical guidance to these six days.
No. Any six days within the month of Shawwal, in any order and not necessarily consecutive or immediately after Eid, fulfil the Sunnah.
Scholars explain this through the principle that a good deed is rewarded tenfold. A thirty-day Ramadan multiplied tenfold equals ten months, and six additional days multiplied tenfold equal roughly two months, together completing a full twelve-month year.
Scholars generally recommend prioritising any missed (Qada) Ramadan days first, since the hadith specifies having fasted Ramadan in full before following it with six days of Shawwal.
Scholars differ. Some permit combining both intentions in a single fast, crediting it toward Qada while hoping for some of the Shawwal reward; others hold that the full Shawwal reward requires completing Ramadan's Qada separately first, then fasting six distinct days with the Shawwal intention alone.
No, it is a recommended Sunnah (mustahabb), not an obligation. There is no sin in not fasting these six days, but the hadith describes a substantial voluntary reward for those who do.
The specific reward described in the hadith is tied to completing the six days within Shawwal itself. If the month ends before all six are fasted, the days fasted are still rewarded as general voluntary fasting, but most scholars hold that the specific year-long reward requires completion within Shawwal.
No. Fasting on Eid al-Fitr itself is prohibited for all Muslims, regardless of intention. The earliest the six days of Shawwal can begin is the second day of the month, once Eid celebrations are over.
The hadith's authenticity is widely accepted, and the majority of scholars across the Hanafi, Shafi'i, and Hanbali schools recommend the practice openly. The Maliki school historically took a more cautious approach, preferring the fast not be done publicly, out of concern it could be mistaken for an extension of the obligatory Ramadan fast — a precaution about practice, not a rejection of the hadith itself.
Beyond the specific mathematics of the reward, scholars often point to this practice as an example of a broader principle in Islamic worship: consistency in small good deeds is valued highly, sometimes more than occasional large ones. A separate hadith describes the most beloved deeds to God as those done consistently, even if small. Six days spread across a month, requiring no special preparation beyond what Ramadan has already built as a habit, is a practical example of that principle in action — it asks for continuation of something already established, rather than a fresh, difficult undertaking, which is likely part of why it's one of the most widely practiced voluntary fasts in the Islamic calendar.
This fast is a recommended Sunnah, not obligatory, and views can vary slightly between schools of thought on secondary details such as combining Shawwal fasting with Qada intentions, or the exact wording and authentication chain of related narrations. For guidance specific to your situation, consult a qualified local scholar.
Put this into practice with Ihsabha's Ramadan Daily Planner and Digital Tasbih Counter to keep the momentum going after Ramadan. For related reading on Ihsabha's blog, see Qada Fasting: How to Make Up Missed Ramadan Days, White Days Fasting (Ayyam al-Beedh): A Complete Guide, and Eid Countdown: How Many Days Until Eid.