A group from Banu Hashim came to Sayyidah Asma' bint Umays (may Allah be pleased with her), and Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) also came in, and Sayyidah Asma' bint Umays (may Allah be pleased with her) was married to Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) at that time. He disliked this and mentioned it to the Prophet (peace and blessings be upon him), and he said: I have seen nothing but good. Then the Prophet (peace and blessings be upon him) said: "Allah Almighty has declared her free of that." Then he (peace and blessings be upon him) stood on the pulpit and said: "After this day, let no man enter upon a woman whose husband is absent unless one or two men are with him."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13519