Sahl bin Sa'd (May Allah be pleased with him) reported:
A drink was brought to Messenger of Allah ﷺ and he drank (some) from it. On his right was a boy and on his left were some elderly people. He ﷺ 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 ﷺ handed over the rest of the drink to him.

[Al-Bukhari and Muslim].

وعن سهل بن سعد رضى الله عنه أن رسول الله ﷺ 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 ﷺ في يده. .