Sayyidah Aishah (may Allah be pleased with her) said: It is as though I can see the glistening of the perfume in the parting of the hair of the Messenger of Allah (peace and blessings be upon him) even three days after his entering ihram.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8961