Hadith al-Kisa is a famous narration from the household of Prophet Muhammad (PBUH). This narration recounts the incident when the Prophet (PBUH) was visited by his daughter, Fatima, her husband, Ali, and their two children, Hasan and Husayn. While they were sitting together, an angel from Allah descended and introduced himself as Jibreel. The angel informed the Prophet (PBUH) that Allah had commanded him to purify the family members present in the room. The Prophet (PBUH) covered them with his own cloak, prayed for them and recited verses from the Quran as a sign of their purification.
The Hadith al-Kisa is a symbol of love and respect for the Ahlul Bayt (the family of the Prophet) and signifies the intimate connection that Muslims have with the Prophet and his family.