Question
In the Rajab du’a, what is the correct pronunciation of of the (ب)? Is it في رجبَ or في رجبٍ?
اَللّٰهُمَّ بَارِكْ لَناَ فِيْ رَجَب وَشَعْبانَ وَبَلّغْنَا رَمَضَان
Answer
The word Rajab is declinable (منصرف i.e. it can take a tanwin). Therefore the du’a is more accurately recited as رجبٍ.
(Refer: Al Misbahul Munir, pg. 120 and Al Adab Fi Rajab, pg: 29)
قال الشيخ أحمد بن محمد الفيّومي (رحمه الله): رجب: من الشهور منصرف (قاموس المصباح المنير , ص: 120)
قال الشيخ ملا علي القاري (رحمه الله): واعلم أن رجبا منصرف عند الأكثر, وهو الأظهر (الأدب في رجب, ص: 29)
See the authenticity of this du’a here
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar,
To recite it without a tanwin (Rajaba) is also one view but not the ideal, as mentioned by Mulla ‘Ali Qari (rahimahullah) in the above reference, as well as in Mirqat, hadith: 1369.