It was narrated that Jabir bin Samurah said:"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
Hadith No. 542
Sunan Ibn Majah
Gradings:
Al-Albani:
Sahih
Muhammad Fouad Abd al-Baqi:
Sahih
Zubair Ali Zai:
Daif