Good Manners and Form (Al-Adab)
Bukhari :: Book 8 :: Volume 73 :: Hadith 130
Narrated 'Aisha:
The Prophet entered upon me while there was a curtain having pictures (of animals) in the house. His face got red with anger, and then he got hold of the curtain and tore it into pieces. The Prophet said, "Such people as paint these pictures will receive the severest punishment on the Day of Resurrection ."