The Messenger of Allah ﷺ met Zubayr among a group of Muslim riders, then he mounted his camel and rode on while the people walked along with him, until it knelt down beside the mosque of the Messenger of Allah ﷺ in Medina.
أن رسول الله ﷺ لقي الزبير في ركب من المسلمين ثم ركب راحلته فسار يمشي معه الناس حتى بركت عند مسجد رسول الله ﷺ بالمدينة.
Bukhari narrated it in the Book of Virtues (3906) with a connected chain from Ibn Shihab, who said that Urwa bin Zubayr informed him, and he related it within a long hadith. Its form appears to be mursal, but it is actually connected through Urwa's hearing it from his father.