When God’s messenger mentioned the lower garment Umm Salama asked what a woman should do and he said she should let it down a span. She replied that in that case she would not be completely covered, and he said she might let it down a cubit, but no more. Malik, Abu Dawud, Nasa’i and Ibn Majah transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب اللباس / 4334
Hadith Gradingالألبانی:لم تتمّ دراسته | زبیر علی زئی:إسناده ضعيف
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده ضعيف، رواه مالک (915/2 ح 1765) و أبو داود (4117) و النسائي (209/8 ح5339. 5341) و ابن ماجه (3580)»