It wasnarrated from 'Abdullah bin 'Umar that a man asked theMessengerof Allah (ﷺ), what clothes may the Muhrim wear? TheMessenger ofAllah (ﷺ) said:
"He should not wear a shirt, or turbans(or headcover), pants or pajamas, hooded cloaks and no leather socks,unlesshe cannot find sandals, in which case he may wear leather socksbutshould cut them to below the ankles. And he should not wear anyclothes that have been touched (dyed) with saffron or Wars."*
English reference: Vol. 4, Book 25, Hadith 2929
Arabic reference: Book 25, Hadith 3041