Jihad (Kitab Al-Jihad)

Dawud :: Book 14 : Hadith 2575

Narrated Imran ibn Husayn:

The Prophet (peace_be_upon_him) said: There must be no shouting or leading another horse at one's side. Yahya added in his tradition: When racing for a wager.

Source materials are from the University of Southern California MSA site
Hadith eBooks converted from Imaan Star