Out of respect for this thread i wont derail but in relation to this thread i will say that its something that is obvious even arabs from y full acknowledge this i would say they are of hejazi origin or tihama based on y full as well as two makkan samples coming up now as the upstream of their mutation. Until we get more results its a strong case that they arrived post islam.
First the fact that one member is claiming descendants from aqeel abi talib and another who is in tue azd tribe. Yet they do not meet somalia mutation of T until between 2300-1600 years ago.
Especially with a zaylai nisba its strong evidence for something that cannot be ignored. And the Bedouin lactase persistence mutation in the north also showing connections.
I also find it a strange coincidence how the first people who converted to islam were dir people who overwhelmingly carry T.
And the fact that history isaaq lived on the coast and only expanded inland a few hundred years ago.
Surre people only left the eastern region of the north a few hundred years ago.
Surre and northern dir mutations ranged from 2000-1200 years ago. I am strongly supporting the case that their common ancestor was post islamic hence why dir is known to make dawah to the other somali clans (i know islam reached Mogadishu as well but thats not the point of the thread talk
based on human behaviour foreigners almost always settle on the coast and move inland later on. Northern dir members tombs like issa and samaroon are also near the coast. Supporting the coastal origin.
what is unsure is the origins of where T landed either in zeila or sanaag its the difficult part. Based on theory i would say zeila as that is most likely where some sahaba landed when making hijra to Ethiopia.
@NidarNidar what do you think about all that i have mentioned