كتاب الحج
15
The Book of Pilgrimage
(7)
Chapter: It is recommended to apply perfume just before entering Ihram, and it is recommended to use Musk, and it does not matter if its glistening traces remain
(7)
باب الطِّيبِ لِلْمُحْرِمِ عِنْدَ الإِحْرَامِ ‏

'A'isha (Allah be pleased with her) reported:

I applied perfume to the Messenger of Allah (ﷺ) before he entered upon the state of lhram and (concluding) before circumambulating the (sacred) House.
حَدَّثَنَا مُحَمَّدُ بْنُ عَبَّادٍ، أَخْبَرَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، - رضى الله عنها - قَالَتْ طَيَّبْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم لِحُرْمِهِ حِينَ أَحْرَمَ وَلِحِلِّهِ قَبْلَ أَنْ يَطُوفَ بِالْبَيْتِ ‏.‏
Reference : Sahih Muslim 1189 a
In-book reference : Book 15, Hadith 34
USC-MSA web (English) reference : Book 7, Hadith 2680
  (deprecated numbering scheme)