The Prophet ﷺ said regarding a man who has intercourse with his wife while she is menstruating, "He should give half a Dinar in charity."
حدثنا علي بن حجر أخبرنا شريك عن خصيف عن مقسم
عن النبي ﷺ في الرجل يقع على امرأته وهي حائض قال يتصدق بنصف دينار
[A daif chain] Abu Dawud narrated it in the Book of Purification, chapter on approaching a menstruating woman, hadith no. 266, from the hadith of Sharik al-Qadi, through it. Khaseef is well known to be daif.