Sayyiduna Amr bin Akhtab (may Allah be pleased with him) narrates: Once the Prophet Muhammad (peace and blessings be upon him) asked for water. I brought a vessel to him which contained water, and there was also a hair in it. I picked it up and held it. The Prophet Muhammad (peace and blessings be upon him) was looking at me. He said: O Allah, grant him beauty.

The narrator says: I saw him at the age of 93, and even then there was not a single white hair on his head or beard.