Could they be anglicised “Reer Diin la/leh”?
Starting a sentence with “Bal” is as pure as Somaliland dialect.
There is even a song which Ahmed Mooge and Magool sing together “Bal kaalay Bilaneey, aan kuu waramee”
Also the stressing of the letter “DH” as in “Fadhiiso” is northern. Southerners say “Fariiso”
“Waxaas keen” - That is again pure Northern
But then again there is a strong Oromo influence in their language. They have more like Issa clan style Oromised words.
All in all, I would understand their language better than I can Banadiri accent.