Musnad Abu Ya'la al-Mawsili 3:255

Abu Sa’id al-Ashajj narrated to us, [and] Abu ‘Abd al-Rahman narrated to us—Abu Sa’id said: A man asked him about his name, and he said: Nadr ibn Mansur, from his father, who said: ‘Uqbah ibn ‘Alqamah al-Yashkuri narrated to us, who said: I heard ‘Ali on the day of the Camel saying: The Messenger of Allah, may Allah bless him and grant him peace, passed by me while he was saying: "Talhah and al-Zubayr are my neighbors in Paradise."