Hazrat Ibn Nuhayyik narrates that I heard Amr bin Akhtab Abu Zaid Ansari saying that the Messenger of Allah (peace be upon him) asked for water, so I brought a bowl to him. There was a hair in it, so I removed it. The Prophet (peace be upon him) said, "O Allah! Make him beautiful." He says that I saw him at the age of ninety-four, and even at that time there was not a single white hair on his head.