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 1178 b
Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدٌ يَعْنِي ابْنَ جَعْفَرٍ، ح وَحَدَّثَنِي أَبُو غَسَّانَ الرَّازِيُّ، حَدَّثَنَا بَهْزٌ، قَالاَ جَمِيعًا حَدَّثَنَا شُعْبَةُ، عَنْ عَمْرِو بْنِ دِينَارٍ، بِهَذَا الإِسْنَادِ أَنَّهُ سَمِعَ النَّبِيَّ صلى الله عليه وسلم يَخْطُبُ بِعَرَفَاتٍ . فَذَكَرَ هَذَا الْحَدِيثَ .
Translation
'Amr b. Dinar narrated with the same chain of transmitters that he heard the Messenger of Allah (ﷺ) delivering sermon at 'Arafat, and he made a mention of this hadith (as quoted above).