The clear disagreement on Fatima's birth date is surprising.
Some scholars state that she was born five years after revelation; while
others say that she was born two or three years before that; and still
others claim that she was born five years before revelation. It should
be noted that the first statement was narrated from the Imams of Ahlul-Bayt
(A) a group of Sunni scholars also favor the same viewpoint. On the other
hand, Sunni scholars and narrators alone speak of the second date.
The following are narrations, which have been cited
concerning the date of Fatima Zahra's birth:
1. Kafi (Kulayni):
"She was born five years after (the beginning of)
Prophethood, and three years after Ascension to heaven. When the Prophet
died, Fatima was eighteen years old...."
2. Al-Manaqib (Ibn Shahr Ashub):
"Fatima was born five years after (the beginning of)
Prophethood and three years after Ascension, namely on the 20th of Jamadi
al-Thani. She lived eight years in Mecca with her father, and then she
3. Al-Bihar: Imam Baqir (A) said:
"Fatima Bint Muhammad was born five years after the
(first) revelation to Allah's Messenger. She died when she was eighteen
years and seventy-five days old."
4. Rawdhat al-Waedin:
"Fatima was born five years after the (first) revelation
to the Prophet...."
5. Iqbal al-Aamal: Sheikh Mufeed in his book Hadaiq
"The 20th of Jamadi al-Thani was the birthday of Fatima
Zahra during the second year after (the first) revealation."
6. Misbah al-Kaf'ami:
"Although it has been said that she was born five
years after (the first) revelation, (Fatima) was born on Friday the 20th
of Jamadi al-Thani, two years after revelation."
"Friday the 20th of Jamadi al-Thani, two years after
revelation, was the birthday of Fatima, as was cited by some narrations.
It has been mentioned in a narration that she was born five years after
revelation. The Sunnis narrate that she was born five years before revelation."
8. Dala'el al-Imamah, on the authority of Imam Sadiq (A):
"Fatima was born on the 20th of Jamadi al-Thani,
forty five years after the Prophet was born...etc." 
The above-mentioned statements are a selection of
narrations from the Imams of Ahlul-Bayt (A) and the old Shiite scholars
(may Allah bless their souls) declaring that Fatima Zahra's birth took
place after revelation. Contrary to this, the Sunni scholars have stated:
1. Ma'refat As-Sahabah by Abu Nu'eym:
"Fatima was the youngest of Allah's Messenger's daughters.
She was born while Quraish was building Kaaba."
2. Maqatil At-Talibin by Abu al-Faraj al-Isfahani:
"Fatima's birth took place before revelation, during
the time that Quraish was building Kaaba."
3. Ibn al-Athir in al-Muhktar Fi Manaqib al-Akhiar.
4. Tabari in Dhakhaer al-Uqbi.
5. Suyuti in Ath-Thughour al-Basimah.
Perhaps more research would reveal that the Sunnis
adopted this viewpoint in most of their books.
After briefly examining the above-mentioned narrations
and in view of the fact that neither Ascension nor Revelation took place
before the beginning of Prophethood, it becomes clear that Lady Fatima
Zahra's birth was after revelation. Therefore, the falsity of the traditions,
which claim that she was born five years prior to the first revelation,
There are two motives which can be cited for those
who made such false claims: The first is to refute the prophetic traditions
which reveal the story of heavenly food and that Fatima was born from sperm
produced from an apple that came from paradise.
The second is to prove that Fatima Zahra was unattractive
to the point that she became eighteen years old before anyone asked to
(More light will be shed on this subject when we elaborate
on Fatima's marriage.)
Nevertheless, Tabari in Dhakhaer al-Uqbi, Asfuri Shafe'i in Nuzhat al-Majalis and Qanduzi in Yanabea al-Mawaddah narrated that Khadija (A) said:
"... Then, when (Fatima's) delivery came near, I sent for the Quraishan midwives who refused to help me because of Muhammad (S). During childbirth, four ladies whose beauty and brilliance were indescribable entered the house'.
One of them said:
"I am your Mother Eve"
The second said:
"I am Umme Kulthum, Musa's sister"
The third said:
"I am Mariam, and we have come to help you."
Here is the same narration but in a different manner:
'When Khadija was about to deliver, she sent for the Quraishan women to help her give birth to her child. They refused and said: 'We will not help you; for you became Muhammad's wife.'
In the meantime, four women entered the house; their beauty and brilliance cannot be described. One of them said:
'I am your Mother Eve.'
The second said:
`I am Asiya Bint Muzahim.'
The third said:
'I am Kulthum, Musa's sister.'
The fourth said:
"I am Mariam Bint Imran, (Isa's mother). We have come to deliver your child. "
Fatima was then born.
"When Fatima fell on the ground, she was in a prostrating
position, raising her finger."
Furthermore, the detailed narration was mentioned
by al-Mufaddal Ibn Amr on the authority of Imam Sadiq (A) in v.1 of Al-Bihar
In addition to what we have already mentioned about Fatima's birth, Ibn Asaker in At-Tarikh al-Kabir said:
"Khadija gave her children to other women for nursing; but when Fatima was born, Khadija herself nursed her."
This was also stated by Ibn Kathir in Al-Bidayah
The above mentioned narrations were recorded in Bihar: v.10.