Muwatta Malik
Prayer in Congregation
كتاب صلاة الجماعة
Translation
Yahya related to me from Malik from Hisham ibn Urwa from hisfather that a woman asked him for a decision, saying, "Waist-wrappersare painful to me. Can I pray in a shift and head-covering?" Hereplied, "Yes, if the shift is long."