The Book of Pilgrimage
15/1. Chapter:
What one who has entered Ihram for Hajj or Umrah is permitted to wear, and what is not permissible, and perfume is forbidden for him
Sahih Muslim
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَعَمْرٌو النَّاقِدُ، وَزُهَيْرُ بْنُ حَرْبٍ، كُلُّهُمْ عَنِ ابْنِ عُيَيْنَةَ، - قَالَ يَحْيَى أَخْبَرَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، - عَنِ الزُّهْرِيِّ، عَنْ سَالِمٍ، عَنْ أَبِيهِ، - رضى الله عنه - قَالَ سُئِلَ النَّبِيُّ صلى الله عليه وسلم مَا يَلْبَسُ الْمُحْرِمُ قَالَ " لاَ يَلْبَسُ الْمُحْرِمُ الْقَمِيصَ وَلاَ الْعِمَامَةَ وَلاَ الْبُرْنُسَ وَلاَ السَّرَاوِيلَ وَلاَ ثَوْبًا مَسَّهُ وَرْسٌ وَلاَ زَعْفَرَانٌ وَلاَ الْخُفَّيْنِ إِلاَّ أَنْ لاَ يَجِدَ نَعْلَيْنِ فَلْيَقْطَعْهُمَا حَتَّى يَكُونَا أَسْفَلَ مِنَ الْكَعْبَيْنِ " .
Salim reported on the authority of his father ('Abdullah b. 'Umar) that the Messenger of Allah (ﷺ) was asked what a Muhrim should wear, whereupon he said: A Muhrim should not wear a shirt, or a turban, or a cap, or trousers, or a cloth touched with wars or with saffron, nor (should he wear) stockings, but in case he does not find shoes, but (before wearing stockings) be should trim them (in such a way) that these should become lower than the ankles.
Reference : Sahih Muslim 1177bIn-book reference : Book 15, Hadith 2USC-MSA web (English) reference : Book 7, Hadith 2648