Sahih Bukhari Volume 4, Book 52, Hadith Number 315.

Narated By Ibn Abi Mulaika : Ibn Az-Zubair said to Ibn Ja’far “Do you remember when I, you and Ibn ‘Abbas went out to receive Allah’s Apostle?” Ibn Ja’far replied in the affirmative. Ibn Az-Zubair added, “And Allah’s Apostle made us (i.e. I and Ibn ‘Abbas) ride along with him and left you.”