Ayoub bin Muhammad al-Wazan أيوب بن محمد بن زياد الوزان · The Book of Hajj

"The Messenger of Allah was asked what clothes the Muhrim may wear. He said: 'He should not wear a shirt, or a burnous, or pants, or an 'Imamah (turban, or any garment that has been touched by (dyed with) Wars or saffron, or Khuffs except for one who cannot find sandals. If he cannot find sandals, then let him cut them until they come lower than the ankles, (sahih)