The virtue of helping the warrior who is fighting in the cause of Allah with mounts etc., and looking after his family in his absence
وَحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ عَلِيِّ بْنِ الْمُبَارَكِ، حَدَّثَنَا يَحْيَى بْنُ أَبِي كَثِيرٍ، حَدَّثَنِي أَبُو سَعِيدٍ، مَوْلَى الْمَهْرِيِّ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم بَعَثَ بَعْثًا إِلَى بَنِي لِحْيَانَ - مِنْ هُذَيْلٍ - فَقَالَ " لِيَنْبَعِثْ مِنْ كُلِّ رَجُلَيْنِ أَحَدُهُمَا وَالأَجْرُ بَيْنَهُمَا " .
It has been narrated on the authority of Abu Sa'id Khudri that the Messenger of Allah (ﷺ) sent a force to Banu Lihyan (who are from Banu Hudhail, and said: One man from every two and the reward (will be divided) between the two.