This is very interesting. Are those jebertis the ancestors of the Somali origin Yemeni and omani tribes who often invite Somali Daroods to gatherings and stuff like that? I believe I've seen several pics of the MJ Darood sultan going to Oman to hang out with these folksIt's in the link i shared earlier. Somalis have been in Aden at least from year 500s if we take what Ibn Mujawir wrote and there was whole lot of us there in the 12th and 13th century and many formed an upper class aristocracy and was even prominent ministers in the rasulid yemen.
Somali aristocrats in Medieval Yemen
- Mention of the Somali Qadi (jurist) Muhammad bin Omar bin Musa bin Abdullah Al-Jabarti Al-Zayla’i Al-Qurashi. He was one of the prominent figures of Yemen in the 1200s and was considered as a close advisor to the first Rasulid kings of Yemen and a very influential person, basically a noble I...www.somalispot.com
There was a pretty sizable population of Somalis in other cities like Zabid, Tihama and some us went to Hijaz. Zabid was particularly an Al-Jabarti center.