Jihad (Kitab Al-Jihad)

Dawud :: Book 14 : Hadith 2559

Narrated Ali ibn AbuTalib:

The Apostle of Allah (peace_be_upon_him) was present with a she-mule which he rode, so Ali said: If we made asses cover mares we would have animals of this type. The Apostle of Allah (peace_be_upon_him) said: Only those who do not know do that.

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