It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him) that he said: I came to Sayyiduna Ali (may Allah be pleased with him) but did not find him there. Sayyidah Fatimah (may Allah be pleased with her) said to me that he had gone to call the Messenger of Allah (peace and blessings be upon him). Then he came with the Messenger of Allah (peace and blessings be upon him), and they entered the house, and I went in with them. The Messenger of Allah (peace and blessings be upon him) called Sayyiduna al-Hasan and Sayyiduna al-Husayn and seated each of them on one of his thighs, and he drew Sayyidah Fatimah and her husband (Sayyiduna Ali) close to himself. Then he wrapped a sheet over them and said: "Allah only intends to remove impurity from you, O household of the Prophet, and to purify you thoroughly." [Surah al-Ahzab: 33] Then he said: "These are my Ahl al-Bayt. O Allah! These people of mine are more deserving." This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.