Sahih Muslim 1190a

Yahya ibn Yahya, Sa'id ibn Mansur, Abu al-Rabi, Khalaf ibn Hisham, and Qutayba ibn Sa'id narrated to us. Yahya said: Hammad ibn Zayd informed us; the others said: Hammad ibn Zayd narrated to us, from Mansur, from Ibrahim, from al-Aswad, from Aisha (may Allah be pleased with her), who said: I can almost see the glimmer of perfume in the parting of the Messenger of Allah's (ﷺ) hair while he was in ihram. Khalaf did not say, ‘while he was in ihram’; instead, he said: ‘That was the perfume of his ihram.’