From Sahih Bukhari (Hadith 270):
Narrated Muhammad bin Al-Muntathir: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 Messenger (ﷺ) and he went round (had sexual intercourse with) all his wives, and in the morning he was Muhrim (after taking a bath)
Reference: Bukhari 270