حَدَّثَنِي يَزِيدُ قَالَ أَخْبَرَنَا سَعِيدٌ عَنْ قَتَادَةَ عَنْ مِقْسَمٍ عَنِ ابْنِ عَبَّاسٍ قَالَ أَمَرَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الَّذِي يَأْتِي امْرَأَتَهُ وَهِيَ حَائِضٌ أَنْ يَتَصَدَّقَ بِدِينَارٍ أَوْ بِنِصْفِ دِينَارٍ
مسند امام احمد بن حنبل · Hadith 2844
It was narrated that Ibn 'Abbas (RA) said: The Prophet (PBUH) instructed the one who had intercourse with his wife when she was menstruating to give a dinar, or half a dinar, in charity.
Sanad
حَدَّثَنِي يَزِيدُ قَالَ أَخْبَرَنَا سَعِيدٌ عَنْ قَتَادَةَ عَنْ مِقْسَمٍ عَنِ ابْنِ عَبَّاسٍ