Is there any proof for fasting on the 27th of Rajab?
The Hadith Masters have agreed that there exists no Hadith that mentions the virtues of fasting on any specific date in Rajab.
There are a few Hadiths that cite a general virtue of fasting anytime during Rajab, as Rajab is from the four sacred months. Any deed done in these months (Rajab, Dhul Qa’dah, Dhul Hijjah & Muharram) will be more rewarding.
(Tabyinul ‘Ajab, pgs.7-11, Lataiful Ma’arif, pg.228 and Al-Adab fi Rajab, pg. 25)
In light of the above, one will be rewarded for fasting on any date in Rajab and one should not attach added virtue for fasting specifically on the 27th.
One of my Bukhari teachers; Shaykhul Hadith Shaykh Fadlur Rahman A’zami (may Allah protect him) wrote the following in a brief article on Mi’raj:
‘With regards to fasting in the month of Rajab, no authentic Hadith can be found wherein any special virtue or significance has been narrated. However we find that in a few fabricated and certainly extremely weak Hadiths some virtues are mentioned for fasting in Rajab. ‘Allamah Suyuti (rahimahullah) has recorded such Hadiths and pointed out their weaknesses.’
And Allah Ta’ala Knows best,
Answered by: Moulana Muhammad Abasoomar
Checked by: Moulana Haroon Abasoomar