Sunan of Abu Dawood Book 14, Hadith 2391

حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، بِهَذَا الْحَدِيثِ بِمَعْنَاهُ ‏.‏ زَادَ الزُّهْرِيُّ وَإِنَّمَا كَانَ هَذَا رُخْصَةً لَهُ خَاصَّةً فَلَوْ أَنَّ رَجُلاً فَعَلَ ذَلِكَ الْيَوْمَ لَمْ يَكُنْ لَهُ بُدٌّ مِنَ التَّكْفِيرِ ‏.‏ قَالَ أَبُو دَاوُدَ رَوَاهُ اللَّيْثُ بْنُ سَعْدٍ وَالأَوْزَاعِيُّ وَمَنْصُورُ بْنُ الْمُعْتَمِرِ وَعِرَاكُ بْنُ مَالِكٍ عَلَى مَعْنَى ابْنِ عُيَيْنَةَ ‏.‏ زَادَ الأَوْزَاعِيُّ وَاسْتَغْفِرِ اللَّهَ ‏.‏

This tradition has also been transmitted by al-Zuhri through a different chain of narrators to the same effect. Al-Zuhri added in his version:This was a special concession for him. If a man commits this act today, the expiation is necessary for him. Abu Dawud said: Al-Laith b. Sa'd, al-Awza'i, Mansur b. al-Mu'tamir and 'Irak b. Malik have narrated this tradition like the one narrated by Ibn 'Uyainah. Al-Awza'i narrated in his version the words: Beg pardon of Allah