Assalam o Alaikum, Nabi s.a.w.w had actually 4 biological daughters and this fact is completely proven from numerous Shia sources. However the Shia ulema of Pakistan and India don’t consider this as true even after having so much proofs from our own books aswell, as far as I get it, they might be doing so to disprove the fact that the third Caliph of Ahle Sunnah , Usman Bin Affan was married to 2 of the daughters of Rasool Allah… we will discuss this in the Second Half of the Answer.

Now, as we know that Nabi s.a.w.w had 4 biological Daughters and all of them were from Lady Khadija , I am going to attach some Shia books scans for better reference and understanding.

First: kitab Al Ghaibah by Sheikh Tusi:

Secondly, AL KHISAL by SHEIKH SADOOQ:

Third, Al Kafi by Sheikh Kulayni:

Fourth, Qurb ul Isnad by Sheikh Himyari :

There are many more narrations aswell but these will be sufficient for now…

NOW, COMING TO THE SECOND PART:

For Those People who say The Other 3 were The daughters of Hala bint Khuwaylid… this doesn’t make sense at all, let me tell you why.

Because the Eldest Daughter of Rasool Allah , Sayeda Zaynab was married to Abu’l Aas ibn Rabi’h… Who is this guy?

Abu’l Aas ibn Rabi’h was the son of Hala bint Khuwaylid, so how is it possible that Rasool Allah married her to her own Brother?

COMING TO THE THIRD PART:

USMAN BIN AFFAN WAS MARRIED TO TWO OF THE DAUGHTERS OF RASOOL ALLAH , but the thing here is, he wasn’t married to both of them simultaneously, rather it is found in the history books that firstly he was married to Ruqayya bint Mohammad and then after her death, He was married to Umme Kulsoom bint Mohammad .

Now The Question Arises, Why did Rasool Allah married his 2 daughters to Usman Bin Affan?

The answer is simple, Whom Were They Both Married To Before Marrying With Usman?

They were married to Uthba and Uthaiba, the sons of Abu Lahab who were kuffar…

And for Someone who’s a munafiq from inside but apparently a muslim from the outside, the rules which are applicable on him are the same as on a muslim until he shows a clear sign of hypocrisy or kufr.[I think y’all understand who I am talking about hehehe]