I saw the Messenger of Allah ﷺ mount his camel at Dhul Hulayfah, then begin the talbiyah once she stood upright with him.
رأيت رسول الله ﷺ يركب راحلته بذي الحليفة، ثم يهل حتى تستوى به قائمة.
Bukhari narrated it in Hajj (1514), and Muslim in Hajj (29:1187), both through the route of Ibn Wahb, from Yunus, from Ibn Shihab, that Salim bin Abdullah told him, that Abdullah bin Umar said, then he related it. The wording given is that of Bukhari, and the wording of Muslim is similar.