It was narrated from Mu'awiyah bin Abu Sufyan that:
He asked his sister Umm Habibah, the wife of the Prophet: "Did the Messenger of Allah ever offered prayer in a garment in which he had sexual intercourse?" She said: "Yes, if there was nothing noxious on it." (DE)
English reference (DE): Vol. 1, Book 1, Hadith 540 (DE)
Arabic reference (DE): Book 1, Hadith 583 (DE)