حَدَّثَنَا الْقَعْنَبِيُّ عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلمأُتِيَ بِلَبَنٍ قَدْ شِيبَ بِمَاءٍ وَعَنْ يَمِينِهِ أَعْرَابِيٌّ وَعَنْ يَسَارِهِ أَبُو بَكْرٍ فَشَرِبَ ثُمَّ أَعْطَى الأَعْرَابِيَّ وَقَالَ ‏"‏ الأَيْمَنَ فَالأَيْمَنَ ‏"
Translation
Anas b. Malik said

Milk mixed with water was brought to the Prophet (ﷺ). An Arab of the desert was on his right and Abu Bakr was on his left. He drank, then gave it to the Arab of the desert and said, "The right, then the right."