Marriage (Kitab Al-Nikah)

Dawud :: Book 11 : Hadith 2128

Narrated AbuHurayrah:

The Prophet (peace_be_upon_him) said: When a man has two wives and he is inclined to one of them, he will come on the Day of resurrection with a side hanging down.

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