It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that when the Prophet (peace and blessings be upon him) gave the salam, he would remain for a little while. The Companions (may Allah be pleased with them) held that this was so that the women could leave before the men.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3004