Shahr bin Hawshab says: I came to Umm Salamah (may Allah be pleased with her) to offer condolences for Husayn bin Ali (may Allah be pleased with them both), so she said: Once the Prophet Muhammad (peace and blessings be upon him) came to me and sat on a sheet. Lady Fatimah (may Allah be pleased with her) brought something to him, and I placed it. The Prophet (peace and blessings be upon him) said: "Call Hasan, Husayn, and your cousin as well." When they had all gathered with him, the Prophet (peace and blessings be upon him) said about them: "These are my special children and my Ahl al-Bayt. O Allah! Remove impurity and filth from them, and purify them thoroughly."