From Sahih Muslim (Hadith 3672):
A hadith like this is reported on the same authority (but with this difference that the narrator) 'Abd al-Rahman b. Aiman (was mentioned) as the freed slave of 'Urwa (Imam Muslim said:He made a mistake who said that it was 'Urwa; it was in fact the freed slave of 'Azza)
Reference: Muslim 3672