His grandfather Mazin bin Khaythama and Hubayl bin Kaab, the grandfather of Zummal, were sent by Muaz bin Jabal on the day he encamped between Sakun and Sakasik and fought until the people accepted Islam. He sent the two of them as delegates to the Messenger of Allah ﷺ, and the Messenger of Allah ﷺ established a bond of brotherhood between Sakun and Sakasik.
أن جده مازن بن خيثمة وهبيل بن كعب-جد زمل- بعثهما معاذ بن جبل يوم نزل بين السكون والسكاسك، وقاتل، حتى أسلم الناس، فبعثهما وافدين إلى رسول الله ﷺ، فآخى رسول الله ﷺ بين السكون والسكاسك.
No references are available.
Ibn Saad (7/424) narrated it, and the wording is his, as did Ibn Qani in Mujam al-Sahabah (3/121), and Tabarani in al-Kabir (20/339), and from him Abu Naeem in Marifat al-Sahabah (5/2588), all of them through the route of Ismail bin Ayyash, from Safwan bin Amr, from Amr bin Qays bin Thawr bin Mazin, who said, and then he mentioned it.Its chain is hasan because of Ismail bin Ayyash Himsi, for his hadith is hasan in his narrations from the people of his own land, and this is one of them, since his teacher Safwan bin Amr bin Harm was from Homs, one of the people of Syria. Haythami said in al-Majma (8/97), "Tabarani narrated it, and its narrators are trustworthy."His statement, "Sukun and Sakasik," refers to two well-known tribes in the lands of Yemen.The origin of this pairing of brothers was between the Muhajirun and the Ansar in Madinah, but it had already happened earlier in Makkah among the Muslims, that is, between those of higher and lower financial standing, such as Hamza and Zayd bin Haritha, since Zayd was their freed slave and had less wealth than Hamza. Likewise it occurred between Zubayr and Ibn Masud and others. Similarly, the Prophet ﷺ paired the tribes with one another, to strengthen the bond of brotherhood between them after Islam.