حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا هُشَيْمٌ، وَإِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ خَالِدٍ الْحَذَّاءِ، عَنْ أَبِي قِلاَبَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ إِذَاتَزَوَّجَ الْبِكْرَ عَلَى الثَّيِّبِ أَقَامَ عِنْدَهَا سَبْعًا ‏.‏ وَإِذَا تَزَوَّجَ الثَّيِّبَ أَقَامَ عِنْدَهَا ثَلاَثًا ‏.‏وَلَوْ قُلْتُ إِنَّهُ رَفَعَهُ لَصَدَقْتُ وَلَكِنَّهُ قَالَ السُّنَّةُ كَذَلِكَ ‏.‏

Narrated Anas b. Malik

When a virgin is married to a man, he shall stay with her for seven days, and when a previously married woman is married, he shall stay with her for three days. And if I were to say that he attributed it to the Prophet (ﷺ), I would be telling the truth, but he said: 'The Sunnah is thus.'