The Book of Prayers (Kitab Al-Salat)
Muslim :: Book 4 : Hadith 1755
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Would any one of you like, when he returns to his family, to find there three large, fat, pregnant she-camels? We said: Yes. Upon this he said: Three verses that one of you recites in his prayer are better for him than three large, fat, pregnant she-camels.