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كتاب الصوم
14  
Fasting (Kitab Al-Siyam)
(803)
Chapter: Expiation For A Man Who Has Sexual Intercourse With His Wife During Ramadan
(37)
باب كَفَّارَةِ مَنْ أَتَى أَهْلَهُ فِي رَمَضَانَ
Sunan Abi Dawud 2391

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.

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 ‏.‏
Grade: Sahih (Al-Albani)  صحيح   (الألباني) حكم   :
Reference : Sunan Abi Dawud 2391
In-book reference : Book 14, Hadith 79
English translation : Book 13, Hadith 2385