When Ja'far (may Allah be pleased with him) came from Abyssinia, the Prophet (peace and blessings be upon him) embraced him and kissed him between his eyes, and said: "I do not know which of the two makes me happier: the conquest of Khaybar or the arrival of Ja'far."
This is mursal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13580
Sayyiduna Abdullah bin Ja'far (may Allah be pleased with them both) said: When Ja'far came from Abyssinia, the Prophet (peace and blessings be upon him) went out to receive him and kissed him.
The preserved (mahfuz) version is the first one, which is mursal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13581