Sahih al-Bukhari 1539
صحيح البخاري#1539SahihNarrated `Aisha:(the wife of the Prophet (ﷺ) I used to scent Allah's Messenger (ﷺ) when he wanted to assume Ihram and also on finishing Ihram before the Tawaf round the Ka`ba (Tawaf-al-ifada)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 25:26