Jami` at-Tirmidhi 136
جامع الترمذي#136Da'ifIbn Abbas narrated that :the Prophet said about a man who had sexual intercourse with his wife while she is menstruating: "He should give half a Dinar in charity
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif
Al-AlbaniDaif
Zubair Ali ZaiDaif
In-book reference: 1:136