‘Abd Allaah bin Umar said A man asked the Apostle of Allaah ﷺ What clothing one should put on if one intend to put on ihram? He said He should not wear shirts, turbans, trousers, garments with head coverings and clothing which has any dye of waras or saffron; one should not put on shoes unless one cannot get sandals. If one cannot get sandals, one should wear the shoes, in which case one must cut them to come below the ankles. (Using translation from Abū Dāʾūd 1823)
يَا رَسُولَ اللهِ مَا يَلْبَسُ الْمُحْرِمُ؟ أَوْ قَالَ مَا يَتْرُكُ الْمُحْرِمُ؟ فَقَالَ لَا يَلْبَسُ الْقَمِيصَ وَلَا السَّرَاوِيلَ وَلَا الْعِمَامَةَ وَلَا الْخُفَّيْنِ إِلَّا أَنْ لَا يَجِدَ نَعْلَيْنِ فَمَنْ لَمْ يَجِدْ نَعْلَيْنِ فَلْيَلْبَسْهُمَا أَسْفَلَ مِنَ الْكَعْبَيْنِ وَلَا الْبُرْنُسَ وَلَا شَيْئًا مِنَ الثِّيَابِ مَسَّهُ وَرْسٌ وَلَا زَعْفَرَانٌ