question #1 Sahih al-Bukhari 1537, 1538, Book 25, Hadith 25 : What is the significance of personal grooming and cleanliness in Islam, especially during the state of Ihram?

Ibn `Umar used to oil his hair. I told that to Ibrahim who said, “What do you think about this
statement: Narrated Aswad from `Aisha: As if I were now observing the glitter of the scent in the
parting of the hair of the Prophet (ﷺ) while he was Muhrim?”