The Book of Pilgrimage
كتاب الحج
Read the English translation first, with the original Arabic directly underneath.
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
Ibn 'Umar (Allah be pleased with them) reported that a person asked the Messenger of Allah (ﷺ) what a Muhrim should put on as dress. Thereupon the Messenger of Allah (ﷺ) said:
Do not put on a shirt or a turban, or trousers or a cap, or leather stockings except one who does not find shoes; he may put on stockings but he should trim them below the ankles. And do not wear clothes to which saffron or wars is applied.
لاَ تَلْبَسُوا الْقُمُصَ وَلاَ الْعَمَائِمَ وَلاَ السَّرَاوِيلاَتِ وَلاَ الْبَرَانِسَ وَلاَ الْخِفَافَ إِلاَّ أَحَدٌ لاَ يَجِدُ النَّعْلَيْنِ فَلْيَلْبَسِ الْخُفَّيْنِ وَلْيَقْطَعْهُمَا أَسْفَلَ مِنَ الْكَعْبَيْنِ وَلاَ تَلْبَسُوا مِنَ الثِّيَابِ شَيْئًا مَسَّهُ الزَّعْفَرَانُ وَلاَ الْوَرْسُ