Sahih Muslim 1749aBook 32, Hadith 39
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ بَعَثَ النَّبِيُّ صلى الله عليه وسلم سَرِيَّةً وَأَنَا فِيهِمْ قِبَلَ نَجْدٍ فَغَنِمُوا إِبِلاً كَثِيرَةً فَكَانَتْ سُهْمَانُهُمُ اثْنَى عَشَرَ بَعِيرًا أَوْ أَحَدَ عَشَرَ بَعِيرًا وَنُفِّلُوا بَعِيرًا بَعِيرًا .
It has been narrated on the authority of Ibn Umar that the Prophet (ﷺ) sent an expedition to Najd and I was among the troops. They got a large number of camels as a booty. Eleven or twelve camels fell to the lot of every fighter and each of them also got one extra camel.