Sahih Muslim Book 7, Hadith Number 2682.

Chapter : Applying of perfume to the body before entering upon the state of Ihram.

‘Aisha (Allah be pleased with her) reported: I used to apply perfume to the Messenger of Allah (may peace be upon him) before his entering upon the state of Ihram and at the conclusion of it, before circumambulating the House (for Tawf-i-Ifada).