It is narrated from Sayyida Umm Salama (may Allah be pleased with her), she says: I heard that the Messenger of Allah (peace and blessings be upon him) addressed his wives and said: Whoever shows kindness to you after me will be extremely truthful and righteous. O Allah! Quench the thirst of Abdur Rahman bin Awf (may Allah be pleased with him) from the fountain in Paradise called Salsabeel.