Explanation

The Prophet (may Allah's peace and blessings be upon him) was ready for Jihad and thus observed what could help him undertake it. In this respect, he complied with Allah's saying: {And prepare against them whatever you are able of power and of stoods of war by which you may terrify the enemy of Allah and your enemy} [Al-Anfāl: 60]. So, he would keep horses under conditions that would make them strong. He would also train his Companions in horse racing in order for them to master the strategies of horse mounting. He also set the distance that trained and untrained horses should cover separately so that each category would receive proper training. In this regard, he made trained horses, which were strong enough because of their feeding system, race six miles. Untrained horses were made to run only one mile. ‘Abdullāh ibn ‘Umar (may Allah be pleased with him) was a young man then, and he participated in the horse race.