Abu Bakr bin Abd al-Rahman (may Allah have mercy on him) said: When the Messenger of Allah (peace and blessings be upon him) married Sayyidah Umm Salamah (may Allah be pleased with her), he went in to her, and when he intended to leave, she took hold of his (peace and blessings be upon him) garment. He (peace and blessings be upon him) said: "If you wish, I will spend more days with you and count them against you: for a virgin seven days, and for a previously married woman three days."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسم والنشوز / 14757