وعن سهل بن سعد رضى الله عنه
أن رسول الله صلى الله عليه وسلم أتى بشراب، فشرب منه وعن يمينه غلام، وعن يساره أشياخ، فقال للغلام: «أتأذن لي أن أعطى هؤلاء.؟ «فقال الغلام: لا والله، لا أوثر بنصيبي منك أحدا، فتله رسول الله صلى الله عليه وسلم في يده»
A drink was brought to the Messenger of Allah (sallallahu alayhi wa sallam) and he drank (some) from it. On his right was a boy and on his left were some elderly people.
He (sallallahu alayhi wa sallam) said to the boy, “Would you permit me to give rest of this drink to these on my left?” The boy said: “O Messenger of Allah, I would certainly not give preference to anyone in anything that might come to me from you.” So he (sallallahu alayhi wa sallam) handed over the rest of the drink to him.
Riyad as-Salihin 760, Book 3, The Book About the Etiquette of Eating, Hadith 34. 1 min read