Anas reported: The Apostle of Allah (may peace he upon him) came to Medina when I was ten years old and he died when I was twenty years old. My mother exhorted me to serve him. He (the Holy Prophet) came to our house, and we ruined a flabby goat for him and mixed it (the milk) with water from the well of the house. Messenger of Allah ﷺ drank that. Umar and Abu Bakr on his left side said to him: Allah's Messenger, give it to Abu Bakr, but he (the Holy Prophet) gave it to the desert Arab who was on his right. Messenger of Allah ﷺ said: He who is on the right, then he who is on the right.

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَعَمْرٌو النَّاقِدُ، وَزُهَيْرُ بْنُ حَرْبٍ، وَمُحَمَّدُ بْنُ عَبْدِ، اللَّهِ بْنِ نُمَيْرٍ - وَاللَّفْظُ لِزُهَيْرٍ - قَالُوا حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ أَنَسٍ، قَالَ قَدِمَ النَّبِيُّ ﷺ الْمَدِينَةَ وَأَنَا ابْنُ عَشْرٍ وَمَاتَ وَأَنَا ابْنُ عِشْرِينَ وَكُنَّ أُمَّهَاتِي يَحْثُثْنَنِي عَلَى خِدْمَتِهِ فَدَخَلَ عَلَيْنَا دَارَنَا فَحَلَبْنَا لَهُ مِنْ شَاةٍ دَاجِنٍ وَشِيبَ لَهُ مِنْ بِئْرٍ فِي الدَّارِ فَشَرِبَ رَسُولُ اللَّهِ ﷺ فَقَالَ لَهُ عُمَرُ وَأَبُو بَكْرٍ عَنْ شِمَالِهِ يَا رَسُولَ اللَّهِ أَعْطِ أَبَا بَكْرٍ . فَأَعْطَاهُ أَعْرَابِيًّا عَنْ يَمِينِهِ وَقَالَ رَسُولُ اللَّهِ ﷺ " الأَيْمَنَ فَالأَيْمَنَ " .