Narrated by Anas bin Malik (may Allah be pleased with him): Milk mixed with water was presented to the Prophet (peace and blessings of Allah be upon him). On his right was a Bedouin and on his left was Abu Bakr (may Allah be pleased with him). He drank the milk, then gave the remainder to the Bedouin and said: "The one on the right has more right (to be served first)."