Al-Imām al-Bukhārī narrates: Ādam narrated to us; he said: Ibn Abī Dhiʾb narrated to us, from Nāfiʿ, from Ibn ʿUmar (may Allāh Almighty be content with both of them), from the Prophet ﷺ; and (also) from al-Zuhrī, from Sālim,
from Ibn ‘Umar, from the Prophet ﷺ: A man asked him: “What should a muḥrim wear?” He ﷺ said: “He should not wear a shirt, nor a turban, nor trousers, nor a cap, nor any garment dyed with saffron or “Wars”. If he does not find sandals, then he may wear leather socks, but he should cut them so that they are below the ankles.” (“Wars” is a fragrant plant used for dyeing.)
حَدَّثَنَا آدَمُ قَالَ: حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ ﷺ. وَعَنِ الزُّهْرِيِّ، عَنْ سَالِمٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ ﷺ
أَنَّ رَجُلًا سَأَلَهُ مَا يَلْبَسُ الْمُحْرِمُ؟ فَقَالَ: لَا يَلْبَسِ الْقَمِيصَ، وَلَا الْعِمَامَةَ، وَلَا السَّرَاوِيلَ، وَلَا الْبُرْنُسَ، وَلَا ثَوْبًا مَسَّهُ الْوَرْسُ أَوِ الزَّعْفَرَانُ، فَإِنْ لَمْ يَجِدِ النَّعْلَيْنِ فَلْيَلْبَسِ الْخُفَّيْنِ، وَلْيَقْطَعْهُمَا حَتَّى يَكُونَا تَحْتَ الْكَعْبَيْنِ.
Reference: Sahih Al Bukhari 134