عَنِ ابْنِ عَبَّاسٍ
قَالَ: أُوحِيَ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: (نساوكم حرث لكم فَأتوا حَرْثكُمْ) الْآيَةَ: «أَقْبِلْ وَأَدْبِرْ وَاتَّقِ الدُّبُرَ وَالْحَيْضَةَ»
God’s Messenger received the revelation, “Your wives are a tilth to you, so come to your tilth…” (Al-Baqarah 2:223) that means from in front or behind, but avoid the anus and intercourse during menstruation.
Mishkat al-Masabih 3064, Book 14, Marriage, Hadith 109. 1 min read