حَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أُتِيَ بِلَبَنٍ قَدْ شِيبَ بِمَاءٍ مِنَ الْبِئْرِ وَعَنْ يَمِينِهِ أَعْرَابِيٌّ وَعَنْ يَسَارِهِ أَبُو بَكْرٍ الصِّدِّيقُ فَشَرِبَ ثُمَّ أَعْطَى الأَعْرَابِيَّ وَقَالَ ‏"‏ الأَيْمَنَ فَالأَيْمَنَ ‏"‏ ‏.‏

Yahya related to me from Malik from Ibn Shihab from Anas ibnMalik that the Messenger of Allah, may Allah bless him and grant himpeace, was brought some milk which was mixed with well-water. Therewas a Bedouin at his right side and Abu Bakr as-Siddiq on his left. Hedrank and then gave it to the Bedouin and said, "The right-hand to theright-hand." Translation Not Available

Book Ref: Muwatta Imam Malik Book 49 Hadith 1690
Web Ref:  Muwatta Imam Malik Book 49 Hadith 17