Sunan an-Nasa'i, Book 27, Hadith 69 (In-Book) ⓘ

It was narrated from Ibn 'Abbas that a man came to the Prophet who had declared Zihar from his wife, then he had intercourse with her. He said: "O Messenger of Allah, I declared Zihar on my wife, then I had intercourse with her before I offered the expiation." He said: "What made you do that, may Allah have mercy on you?" He said: "I saw her anklets in the light of the moon." He said: "Do not approach her until you have done that which Allah, the Mighty and Sublime, has commanded."

أَخْبَرَنَا الْحُسَيْنُ بْنُ حُرَيْثٍ، قَالَ حَدَّثَنَا الْفَضْلُ بْنُ مُوسَى، عَنْ مَعْمَرٍ، عَنِ الْحَكَمِ بْنِ أَبَانَ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَجُلاً، أَتَى النَّبِيَّ صلى الله عليه وسلم قَدْ ظَاهَرَ مِنِ امْرَأَتِهِ فَوَقَعَ عَلَيْهَا فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي ظَاهَرْتُ مِنِ امْرَأَتِي فَوَقَعْتُ قَبْلَ أَنْ أُكَفِّرَ ‏.‏ قَالَ ‏"‏ وَمَا حَمَلَكَ عَلَى ذَلِكَ يَرْحَمُكَ اللَّهُ ‏"‏ ‏.‏ قَالَ رَأَيْتُ خَلْخَالَهَا فِي ضَوْءِ الْقَمَرِ ‏.‏ فَقَالَ ‏"‏ لاَ تَقْرَبْهَا حَتَّى تَفْعَلَ مَا أَمَرَ اللَّهُ عَزَّ وَجَلَّ ‏"‏ ‏.‏