Ahl al-Kisāʾ (the people of the cloak) generally refers to the group comprising the prophet Muḥammad, his daughter Fāṭima, his cousin and son-in-law ʿAlī b. Abī Ṭālib, and his grandsons al-Ḥasan and al-Ḥusayn. This pentad has also been designated aṣḥāb al-kisāʾ and āl al-ʿabāʾ . The source of this expression is a ḥadīth known as ḥadīth al-kisāʾ (also as ḥadīth al-ʿabāʾ), recorded in both Sunnī and Shīʿī collections of traditions. According to this ḥadīth , one day in the house belonging to either