question #1 Sahih Muslim 1192c, Book 15, Hadith 54 : What is the significance of applying perfume before entering the state of Ihram in Islamic tradition?

I heard from Ibn ‘Umar having said this:” It is dearer to me to rub tar (on my body) than to enter upon the state of Ihram (in a state) of shaking off the perfume.” He (the narrator) said: I went to ‘A’isha and told her about this statement of his (of Ibn ‘Umar). Thereupon she said: I applied perfume to the Messenger of Allah (ﷺ) and he then went round his wives and then entered upon the state of Ihram in the morning.