Yahya related to me from Malik from Abdullah ibn Abi Bakr ibnMuhammad ibn Amr ibn Hazm from Abd al-Malik ibn Abi Bakr ibn Abd ar-Rahman ibn al-Harith ibn Hisham al-Makhzumi from his father that whenthe Messenger of Allah, may Allah bless him and grant him peace,married Umm Salama and then spent the night with her, he said to her,"You are not being humbled in your right. If you wish, I will staywith you for seven nights as I stayed seven nights with the others. Ifyou wish, I will stay with you for three nights, and then visit theothers in turn." She said, "Stay three nights."
USC-MSA web (English) reference: Book 28, Hadith 14
Arabic reference: Book 28, Hadith 1108