Sahl bin Saad reported,

The Messenger of Allah ﷺ was brought a drink and he drank from it. On his right was a young boy, and on his left were the elders. He said to the boy, "Will you give me permission to give it to these others?"The boy replied, "By Allah, Messenger of Allah, I will not give up my share from you to anyone."So the Messenger of Allah ﷺ placed it firmly in his hand.

Bukhari 5620

Sahih

حدثنا إسماعيل قال حدثني مالك عن أبي حازم بن دينار

عن سهل بن سعد رضي الله عنه

أن رسول الله ﷺ أتي بشراب فشرب منه وعن يمينه غلام وعن يساره الأشياخ فقال للغلام أتأذن لي أن أعطي هؤلاء فقال الغلام والله يا رسول الله لا أوثر بنصيبي منك أحدا قال فتله رسول الله ﷺ في يده

البخاري 5620صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Drinks
Chapter
Whether a man should ask permission from the one on his right when drinking to give to the elder
Numbering
Darussalam 5620
Bukhari 5620