Sunan an-Nasa'i, Volume 4, Book 27, Hadith 3489 (DarusSalam) ⓘ

'Ikrimah said: "A man came to the Prophet of Allah and said: 'O Prophet of Allah,' and that he had declared Zihar to his wife, then he had intercourse with her before he did what he had to do. He said: 'What made you do that?' He said: 'O Prophet of Allah! I saw the whiteness of her calves in the moonlight.' The Prophet said: 'Keep away until you have done what you have to do.' (One of the narrators) Ishaq said in his Hadith: "Keep away from her until you have done what you have to do." The wording is that of Muhammad.

أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا الْمُعْتَمِرُ، ح وَأَنْبَأَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا الْمُعْتَمِرُ، قَالَ سَمِعْتُ الْحَكَمَ بْنَ أَبَانَ، قَالَ سَمِعْتُ عِكْرِمَةَ، قَالَ أَتَى رَجُلٌ نَبِيَّ اللَّهِ صلى الله عليه وسلم فَقَالَ يَا نَبِيَّ اللَّهِ إِنَّهُ ظَاهَرَ مِنِ امْرَأَتِهِ ثُمَّ غَشِيَهَا قَبْلَ أَنْ يَفْعَلَ مَا عَلَيْهِ ‏.‏ قَالَ ‏"‏ مَا حَمَلَكَ عَلَى ذَلِكَ ‏"‏ ‏.‏ قَالَ يَا نَبِيَّ اللَّهِ رَأَيْتُ بَيَاضَ سَاقَيْهَا فِي الْقَمَرِ ‏.‏ قَالَ نَبِيُّ اللَّهِ صلى الله عليه وسلم ‏"‏ فَاعْتَزِلْ حَتَّى تَقْضِيَ مَا عَلَيْكَ ‏"‏ ‏.‏ وَقَالَ إِسْحَاقُ فِي حَدِيثِهِ ‏"‏ فَاعْتَزِلْهَا حَتَّى تَقْضِيَ مَا عَلَيْكَ ‏"‏ ‏.‏ وَاللَّفْظُ لِمُحَمَّدٍ ‏.‏ قَالَ أَبُو عَبْدِ الرَّحْمَنِ الْمُرْسَلُ أَوْلَى بِالصَّوَابِ مِنَ الْمُسْنَدِ وَاللَّهُ سُبْحَانَهُ وَتَعَالَى أَعْلَمُ ‏.‏