The Islamic calendar is filled with special days that encourage Muslims to strengthen their connection with Allah, and among these are the white days of Rajab. Many Muslims ask what are the white days of Rajab and why they hold spiritual importance, especially since Rajab itself is one of the sacred months in Islam.
The white days are known for fasting and increased worship, offering believers an opportunity to earn greater rewards and prepare spiritually for the months leading to Ramadan. In this article, we will explore the meaning of the white days, their significance in Rajab, and how Muslims can benefit from observing them.
What Are the White Days in Islam?
Before understanding the white days of Rajab, it is important to know what the white days are in general.
The white days (Ayyām al-Bīḍ) refer to the 13th, 14th, and 15th days of every lunar month. They are called “white” because the moon is full and bright during these nights, illuminating the sky.
The Prophet Muhammad ﷺ encouraged fasting on these days, as they are times of increased reward and spiritual reflection.
What Are the White Days of Rajab?
They are simply the 13th, 14th, and 15th days of the month of Rajab, following the same lunar pattern as other months.
However, fasting on these days during Rajab holds extra significance because Rajab is one of the four sacred months chosen by Allah.
Why Rajab Is a Special Month
Rajab is the seventh month of the Islamic calendar and one of the four sacred months mentioned in the Qur’an:
“Indeed, the number of months with Allah is twelve months… of these, four are sacred.”
(Surah At-Tawbah 9:36)
Because Rajab is sacred:
- Good deeds carry greater rewards
- Sins are more serious
- Worship is highly encouraged
This makes fasting the three white days of Rajab even more spiritually rewarding.
The Virtue of Fasting the White Days
Fasting the white days is a Sunnah of the Prophet ﷺ. He said:
“Fasting three days of every month is equivalent to fasting for a lifetime.”
(Sahih al-Bukhari & Muslim)
This reward applies to any month, but scholars explain that fasting during sacred months such as Rajab carries additional virtue.
Three White Days of Rajab: Dates and Practice
The three white days of Rajab are:
- 13th of Rajab
- 14th of Rajab
- 15th of Rajab
Muslims may fast:
- All three days for maximum reward
- Or any one or two of them if unable to fast all three
There is flexibility in Islam, and sincerity is more important than quantity.
Is Fasting the White Days of Rajab Obligatory?
No, fasting the white days of Rajab is not obligatory. It is a recommended (mustahabb) Sunnah.
Islam does not require specific acts exclusively for Rajab, but it encourages general worship, including:
- Voluntary fasting
- Extra prayers
- Charity
- Seeking forgiveness
Spiritual Benefits of Observing the White Days of Rajab

Fasting the white days during Rajab offers multiple spiritual benefits:
1. Increased Taqwa (God-Consciousness)
Fasting helps control desires and strengthens awareness of Allah.
2. Preparation for Ramadan
Rajab serves as a spiritual warm-up before Ramadan, making fasting easier later.
3. Consistency in Worship
Regular fasting builds discipline and consistency in acts of worship.
4. Forgiveness and Mercy
Sincere fasting and repentance during sacred times invite Allah’s mercy.
Common Misconceptions About the White Days of Rajab
While the white days are virtuous, it is important to avoid exaggeration or innovation.
❌ There is no authentic evidence that fasting the white days of Rajab has a special reward beyond general white-day fasting
❌ No specific du‘a or prayer is exclusively prescribed
❌ Rajab fasting is not mandatory
✔ The correct approach is balanced worship based on authentic Sunnah
How to Observe the White Days of Rajab Correctly
To benefit spiritually from the white days of Rajab:
- Make sincere intention (niyyah)
- Fast for Allah’s sake alone
- Combine fasting with prayer and Qur’an recitation
- Avoid sins and negative behavior
- Increase remembrance of Allah (dhikr)
White Days of Rajab and Islamic Balance
Islam encourages moderation. While fasting is virtuous, it should not:
- Harm one’s health
- Interfere with obligations
- Lead to believing unverified practices
The Prophet ﷺ taught balance in worship, and observing the white days fits perfectly within this balanced approach.
Why the White Days of Rajab Matter Today
In today’s busy world, the white days of Rajab offer Muslims:
- A pause for reflection
- A chance to reset spiritually
- A reminder of the sacred rhythm of Islamic time
They help reconnect the believer with faith, discipline, and gratitude.
Conclusion
The white days of Rajab—the 13th, 14th, and 15th of the month—are a blessed opportunity for voluntary fasting and spiritual growth. Understanding what are the white days of Rajab helps Muslims practice authentic Sunnah while honoring one of Islam’s sacred months.
Observing the three white days of Rajab is not about innovation, but about sincere worship, preparation for Ramadan, and strengthening one’s relationship with Allah.
FAQs
What are the white days of Rajab?
The white days of Rajab are the 13th, 14th, and 15th days of the month, known for voluntary fasting and increased worship.
Is fasting the three white days of Rajab mandatory?
No, fasting the three white days of Rajab is a recommended Sunnah, not an obligation.
Are the white days of Rajab more virtuous than other months?
The white days are virtuous every month, but fasting them in Rajab carries extra reward because Rajab is a sacred month.
Can I fast only one of the white days of Rajab?
Yes, fasting one or more of the white days is acceptable, and Allah rewards based on sincerity.

