Sahih Bukhari, Chapter: Bathing (Ghusl)

on the authority of his father that he had asked 'Aisha about the saying of Ibn 'Umar(i.e. he did not like to be a Muhrim while the smell of scent was still coming from his body). 'Aisha said, "I scented Allah's Apostle and he went round (had sexual intercourse with) all his wives, and in the morning he was Muhrim (after taking a bath)."