Musannaf Ibn Abi Shayba 28:1154

Ali ibn Mushir narrated to us, from al-Ajalh, from al-Sha'bi, who said: The Messenger of Allah, may Allah bless him and grant him peace, was approached and it was said to him, "Ja'far has arrived." He said, "I do not know which of the two I am more joyful about: the arrival of Ja'far or the conquest of Khaybar." Then the Prophet, may Allah bless him and grant him peace, met him, embraced him, and kissed him between his eyes.