Messenger of Allah ﷺ sent a Sariya towards Najd, and ʿAbdullah bin ʿUmar was in the Sariya. They gained a great number of camels as war booty. The share of each one of them was twelve or eleven camels, and they were given an extra camel each.  

أَنَّ رَسُولَ اللَّهِ ﷺ بَعَثَ سَرِيَّةً فِيهَا عَبْدُ اللَّهِ قِبَلَ نَجْدٍ فَغَنِمُوا إِبِلاً كَثِيرًا فَكَانَتْ سِهَامُهُمُ اثْنَىْ عَشَرَ بَعِيرًا أَوْ أَحَدَ عَشَرَ بَعِيرًا وَنُفِّلُوا بَعِيرًا بَعِيرًا  

Messenger of Allah ﷺ used to give extra share to some of the members of the Sariya he used to send, in addition to the shares they shared with the army in general.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُنَفِّلُ بَعْضَ مَنْ يَبْعَثُ مِنَ السَّرَايَا لأَنْفُسِهِمْ خَاصَّةً سِوَى قِسْمِ عَامَّةِ الْجَيْشِ