Hadith 2122
Abd al-Malik bin Abi Bakr reported from his father on the authority of Umm Salamah: When the Messenger of Allah ﷺ married Umm Salamah, he stayed with her three night, and said: Your people (i. e. clan) are not being humbled for you in my estimation. If you wish I shall stay with you seven nights ; and if I stay you seven nights, I shall stay with my other wives seven nights.
Hadith 2123
Narrated Anas bin Malik: When the Messenger of Allah ﷺ married Safiyyah, he stayed with her three nights. The narrator Uthman added: She was non virgin (previously married). He said: This tradition has been narrated to me by Hushaim, reported by Humaid, and transmitted by Anas.
Hadith 2124
Narrated Anas bin Malik: When a man who has a wife married a virgin he should stay with her seven nights ; if he marries to a woman who has been previously married he should stay with her three nights. (The narrator said: ) If I say that he (Anas) narrated this tradition from the Prophet ﷺ I shall be true. But he said: The Sunnah is so-and-so.