Sahih Muslim , Book 17, Hadith 55 (In-Book) ⓘ

Ibn Abu Bakr b. Abd al-Rahman reported that when Allah's Messenger married Umm Salama and she stayed with him (during the night), and it was dawn, he (the Holy Prophet) said to her: There is no lack of estimation for you on the part of your husband. So if you desire I can spend a week with you, and if you like I may spend three (nights). and then I will visit you in turn. She said: Spend three (nights).

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ عَبْدِ، الْمَلِكِ بْنِ أَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ ‏{‏ عَنْ أَبِيهِ، ‏}‏ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم حِينَ تَزَوَّجَ أَمَّ سَلَمَةَ وَأَصْبَحَتْ عِنْدَهُ قَالَ لَهَا ‏ "‏ لَيْسَ بِكِ عَلَى أَهْلِكِ هَوَانٌ إِنْ شِئْتِ سَبَّعْتُ عِنْدَكِ وَإِنْ شِئْتِ ثَلَّثْتُ ثُمَّ دُرْتُ ‏" ‏ ‏.‏ قَالَتْ ثَلِّثْ ‏.‏