It is narrated from Hazrat Anas (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) went to visit an Ansari man who was ill and said to him, "Uncle! Affirm that there is no god but Allah." He said, "Uncle or paternal uncle?" The Prophet (peace and blessings be upon him) replied, "No, uncle, say there is no god but Allah." He asked, "Is this better for me?" The Prophet (peace and blessings be upon him) said, "Yes!"