The birth of al-Zahra’, Fatima عليه السلام
Al-Kāfi|Volume 1|Book 4|Chapter 114
وُلِدَتْ فَاطِمَةُ عَلَيْهَا وَعَلَى بَعْلِهَا السَّلامُ بَعْدَ مَبْعَثِ رَسُولِ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) بِخَمْسِ سِنِينَ وَتُوُفِّيَتْ (عليها السلام) وَلَهَا ثَمَانَ عَشْرَةَ سَنَةً وَخَمْسَةٌ وَسَبْعُونَ يَوْماً وَبَقِيَتْ بَعْدَ أَبِيهَا (صَلَّى اللهُ عَلَيْهِ وَآلِه) خَمْسَةً وَسَبْعِينَ يَوْماً.
Fatima عليه السلام was born five years after the Messenger of Allah declared his message. She died when she was eighteen years and seventy five days old. She lived for seventy five days after the death of her father صلى الله عليه وعلى آله وسلم.”
- Ṣaḥīḥ al-Kāfī