We four persons, came to the Messenger of Allah ﷺ, and we (i.e. each one of us) had horses. He therefore, allotted one portion for each of us, and two portions for his horse.
أَتَيْنَا رَسُولَ اللَّهِ ﷺ أَرْبَعَةَ نَفَرٍ وَمَعَنَا فَرَسٌ فَأَعْطَى كُلَّ إِنْسَانٍ مِنَّا سَهْمًا وَأَعْطَى لِلْفَرَسِ سَهْمَيْنِ