Sayyidah Asma bint Abi Bakr (may Allah be pleased with her) said: The Messenger of Allah (peace and blessings be upon him) said: "O women! Whoever among you believes in Allah and the Last Day, let her not raise her head until the men have raised their heads." That was because their waist-wraps were short, for fear that their private parts might be exposed.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20632