Sujuus aren't somalis from NFD. They were/are middle class traders originally from british Somaliland living in Major swahili speaking cities like Nairobi and Dar-es-salaam in colonial times.It is the providence in north of Kenya now but in the past was south of Somalia handed over by British to Kenya. The Somalis from that providence called suju. https://en.m.wikipedia.org/wiki/North_Eastern_Province_(Kenya)