Majma al-Zawaid — Hadith 14042

It is reported about Sayyiduna Abbad bin Amr (may Allah be pleased with him) that he used to serve the Prophet (peace and blessings be upon him). Once a Jew was talking with him (peace and blessings be upon him), and meanwhile his cloak fell from his shoulder. The Prophet (peace and blessings be upon him) did not like his Seal of Prophethood to be seen. I straightened his cloak. The Prophet (peace and blessings be upon him) asked: "Who did this?" I said: I did. The Prophet (peace and blessings be upon him) said: "Come in front of me!" So I came and sat in front of him. The Prophet (peace and blessings be upon him) placed his blessed hand on my head and passed it down to my face and chest. Then he said: "When something comes to us, come to me." When I came to him, he ordered that I be given a jadh'ah (a camel that has completed four years and entered its fifth). That Seal was towards the left shoulder of the Prophet (peace and blessings be upon him); it looked like the knee of a young goat (that is, it was a few hairs).
Imam al-Tabarani recorded it; its chain contains a narrator whom I do not know.