The Short but Radiant Life of Lady Fatimah (pbuh)

Hawzah News Agency- Imam Baqir (pbuh) said:

وُلِدَتْ فاطمةُ بنت محمدٍ - صلّی الله علیه و آله - بعدَ مبعثِ الرسولِ بخمسِ سنینَ و تُوَفِّیَتْ و لها ثمانَ عَشَرةَ سنةً.

Fatimah, daughter of Muhammad (pbuh), was born five years after the Prophet’s prophethood began, and she passed away at the age of eighteen.

Usul Al-Kafi, Vol. 1, p. 457