Anas bin Mâlik said, that once a domestic sheep was milked for Allâh's Messenger (ﷺ) while he was in the house of Anas bin Mâlik. The milk was mixed with water drawn from the well in Anas ' house. A tumbler of it was presented to Allâh's Messenger (ﷺ) who drank from it. Then Bakr was sitting on his left side and a bedouin on his right side. When the Prophet (ﷺ) removed the tumbler from his mouth, 'Umar was afraid that the Prophet (ﷺ) might give it to the bedouin, so he said." "O Allâh's Messenger (ﷺ)! Give it to Bakr who is sitting by your side." But the Prophet (ﷺ) gave it to the bedouin who was to his right and said, "You should start with the one on your right side." [3:542-O.B]