It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah said: "When a Muhrim does not find shoes, he should wear socks and cut them so that they are below the ankles."
Hadith Referenceصحيح ابن خزيمه / جماع أبواب ذكر أفعال اختلف الناس فى إباحته للمحرم، نصت سنة النبى صلى الله عليه وسلم أو دلت على إباحتها / 2683