Fāṭima bint al-Ḥasan ibn ʿAlī (), , was a daughter of Hasan ibn Ali and Umm Ishaq bint Talha.Mohamed Raza Dungersi, A Brief Biography of Imam Hasan (A.S) (1994) p. 42 She was married to Ali ibn Husayn Zayn al-Abidin (the fourth Shi'ite Imam), and became the mother of Muhammad al-Baqir (the fifth Twelver Imam). Her kunya was Umm ʿAbd Allāh and she was referred to as al-Ṣiddīqa ("the very truthful one") by her husband Ali.Abu al-Hasan al-'Amili, Diya' al-Amilin, vol. 2. Al-Dur al-Nazim, serial 2879. It has also been reported that her features were such, that no one in the family of Hasan ibn Ali looked like her.Usul al-Kafi, vol. 1, p. 469.
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