Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that a man asked in a loud voice: O Messenger of Allah! Which clothes should a Muhrim avoid? The Prophet (peace and blessings be upon him) said: A Muhrim cannot wear trousers, shirts, caps (that cling to the head), or turbans, nor any cloth dyed with saffron or wars (a type of grass used for dyeing). During Ihram, use an izar (waist-wrapper), a sheet, and sandals; if sandals are not available, then wear socks after cutting them below the ankles.