The first contact between Ogaden clansmen and Abyssinian army was exactly in 1900 and it took place on the banks of Shabelle river, at a place called Imey. In that confrontation the Abyssinians were thoroughly defeated. They dumped all their weaponry and hastily retreated. Some of the loot was brought to Sayid Mohammed as a present when he came to Moxamed Zubeir in Harodigeed. People also should not forget that Minilik only conquered Harar in 1899!
@Teeri-Alpha can you confirm this?