He reported God's Messenger as saying, “If one enters a horse with two others there is no good in it if he is certain it cannot be beaten, but there is no harm if he is not."
It is transmitted in Sharh as-sunna. In Abu Dawud’s version he said, “If one enters a horse with two others when he is not certain that it cannot be beaten, it is not gambling; but when one enters a horse with two others when he is certain it cannot be beaten, it is gambling."
‘Imran b. Husain reported God’s Messenger as saying, “There must be no shouting or leading another horse at one’s side."* Yahya added in his tradition, “when racing for a wager."
* There must be no shouting to urge one’s horse on, and one must not take a horse alongside him to which he may transfer if he is afraid his horse may be beaten.
Abu Dawud and Nasa’i transmitted it, and Tirmidhi transmitted it with an addition in the section on seizing forcibly.
Abu Najih as-Sulami told that he heard God’s Messenger say, “He who causes an arrow to hit its mark in God’s path will have it count as a degree for him in paradise, if anyone shoots an arrow in God’s path it is equivalent to his setting someone free, and if anyone develops a grey hair on behalf of Islam it will be a light for him on the day of resurrection."
Baihaqi transmitted it in Shu'ab al-iman. Abu Dawud transmitted the first section, Nasa’i the first and second, and Tirmidhi the second and third. The version of Nasa’i and Tirmidhi has, “If anyone develops a grey hair in God’s path,” instead of “on behalf of Islam."