Yahya related to me from Malik from Ibn Shihab from Anas ibn
Malik that the Messenger of Allah, may Allah bless him and grant him
peace, was brought some milk which was mixed with well-water. There
was a Bedouin at his right side and Abu Bakr as-Siddiq on his left. He
drank and then gave it to the Bedouin and said, "The right-hand to the
right-hand."
Muwatta Malik Book 49, Hadith 17