It wasnarrated from Salim, from his father:
"I heard the MessengerofAllah (ﷺ) reciting the Talbiyah when he entered Ihram withsomething applied to his head to keep the hair together.'" (FR)
English reference (FR): Vol. 4, Book 25, Hadith 3047 (FR)
Arabic reference (FR): Book 25, Hadith 3163 (FR)