Sahih Muslim , Book 8, Hadith 3445 (USC-MSA) ⓘ

Abu Bakr b. 'Abd al-Rahman reported that when Allah's Messenger married Umm Salama and he visited her, and when he intended to come out, she caught hold of his cloth. whereupon Allah's Messenger said: If you so desire, I can extend the time (of my stay) with you, but then I shall have to calculate the time (that I stay with you and shall have to spend the same time with other wives). For the virgin woman, (her husband has to stay with her) for a week, and for the woman previously married it is three days.

وَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِيُّ، حَدَّثَنَا سُلَيْمَانُ، - يَعْنِي ابْنَ بِلاَلٍ - عَنْ عَبْدِ، الرَّحْمَنِ بْنِ حُمَيْدٍ عَنْ عَبْدِ الْمَلِكِ بْنِ أَبِي بَكْرٍ، عَنْ أَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم حِينَ تَزَوَّجَ أُمَّ سَلَمَةَ فَدَخَلَ عَلَيْهَا فَأَرَادَ أَنْ يَخْرُجَ أَخَذَتْ بِثَوْبِهِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ إِنْ شِئْتِ زِدْتُكِ وَحَاسَبْتُكِ بِهِ لِلْبِكْرِ سَبْعٌ وَلِلثَّيِّبِ ثَلاَثٌ‏" ‏ ‏.‏