وَعَنْ أَنَسٍ
قَالَ: «مِنَ اَلسُّنَّةِ إِذَا تَزَوَّجَ اَلرَّجُلُ اَلْبِكْرَ عَلَى اَلثَّيِّبِ أَقَامَ عِنْدَهَا سَبْعًا، ثُمَّ قَسَمَ، وَإِذَا تَزَوَّجَ اَلثَّيِّبَ أَقَامَ عِنْدَهَا ثَلَاثًا، ثُمَّ قَسَمَ»
It is from the Sunnah that when a man who has a wife marries a virgin, he should spend with her seven nights, and thereafter divide time between them (equally). And if he marries a formerly married woman he should spend with her three nights and thereafter divide the time between his wives (equally).
Bulugh al-Maram 1228, Book 8, Marriage, Hadith 106. 1 min read