"A man asked the Prophet whether he could perform prayer in a garment in which he had intercourse with his wife. He said: 'Yes, unless he sees something on it, in which case he should wash it.'"
سَأَلَ رَجُلٌ النَّبِيَّ ﷺ يُصَلِّي فِي الثَّوْبِ الَّذِي يَأْتِي فِيهِ أَهْلَهُ قَالَ نَعَمْ إِلاَّ أَنْ يَرَى فِيهِ شَيْئًا فَيَغْسِلَهُ