Prior to Imaam Axmed Gurey’s ascension; Ethiopia’s negus Yeshak (1414-1429) invaded Ifat, killed its ruler (Imaam Sacad ad-Diin), sacked Saylac (Zeilah) and forced the Somalis to pay a tribute. Consequently, Ifat ceased to exist and Adal Sultanate was born.

His soldiers then composed a long epic victory song (recorded) mentioning the Somali name for the first time (see red block):

“Sumale yingar (Tell the Somalis)
Semur vingar (Tell the Semurs)”

What is particular interesting is the mention of Semurs. Enrico Cerulli asserts that Semur is an ancient Harari name which later morphed into the current name Temur. Huge research gap here!