عَنْ أُمِّ سَلَمَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ كَيْفَ بِالنِّسَاءِ قَالَ يُرْخِينَ شِبْرًا قُلْتُ إِذًا يَنْكَشِفُ عَنْهُنَّ يَا رَسُولَ اللَّهِ قَالَ فَذِرَاعٌ لَا يَزِدْنَ عَلَيْهِ
It is narrated from Sayyida Umm Salama (may Allah be pleased with her), she says: I said, "O Messenger of Allah! What is the ruling for women regarding letting their garments hang down?" The Prophet (peace and blessings be upon him) said: "Let the hem hang down by a handspan." I said, "O Messenger of Allah! Then their feet will become uncovered." The Prophet (peace and blessings be upon him) said: "Let it be a forearm's length, and do not increase more than that."