Sahih Muslim | Book 23 | Chapter 15

Narrated by Anas b. Malik
Anas b. Malik reported that there was brought to Allah's Messenger (may peace be upon him) a cup of milk mixed with water, while there was on his right a desert Arab and on his left Abu Bakr. He (the Holy Prophet) drank; he then gave it to the desert Arab and said: (Give to one) who is on the right, then again who is on the right.

Narrated by Anas
Anas reported: The Apostle of Allah (may peace he upon him) came to Medina when I was ten years old and he died when I was twenty years old. My mother exhorted me to serve him. He (the Holy Prophet) came to our house, and we ruined a flabby goat for him and mixed it (the milk) with water from the well of the house. Allah's Messenger (may peace be upon him) drank that. Umar and Abu Bakr on his left side said to him: Allah's Messenger, give it to Abu Bakr, but he (the Holy Prophet) gave it to the desert Arab who was on his right. Allah's Messenger (may peace be upon him) said: He who is on the right, then he who is on the right.

Narrated by Anas b. Malik
Anas b. Malik reported: Allah's Messenger (may peace be upon him) came to our house and he asked for a drink. We milked a goat for him and then mixed it (the milk) with the water of this well of mine. I gave it to Allah's Messenger (may peace be upon him) and he drank it, while Abu Bakr was on his left and 'Umar was in front of him, and a desert Arab was on his right. When Allah's Messenger (may peace be upon him) had finished the drink, Umar said: Allah's Messenger, here is Abu Bakr, give him to drink; but Allah's Messenger (may peace be upon him) gave it to the desert Arab and he left out Abu Bakr and Umar. And Allah's Messenger (may peace be upon him) said: Those on the right, those on the right, those on the right (deserve preference). Anas said: This is the Sunnah, this is the Sunnah, this is the Sunnah.

Narrated by Sahl b. Sa'd Sa'idi
Sahl b. Sa'd Sa'idi reported that Allah's Messenger (may peace be upon him) was given a drink, and he drank from that, and there was on his right side a boy and on his left some old men. He said to the boy: Do you permit me to give it to them (the old men), but that boy said: by God. I will not give preference at your hand over me in my share. He (the narrator) said that Allah's Messenger (may peace be upon him) then gave it in his hand.

Narrated by Sahl b. Sa'd
This hadith is reported on the authority of Sahl b. Sa'd with a slight variation of wording.