Following the death of Emir Nur, Harar began a steady decline in wealth and power.
A later ruler, Imam Muhammed Jasa, a kinsman of Ahmad Gragn, yielded to the pressures of increasing Oromo raids and in 1577 abandoned the city, relocating to Aussa and making his brother ruler of Harar.
The new base not only failed to provide more security from the Oromos, it attracted the hostile attention of the neighboring Afar people, who raided caravans traveling between Harar and the coast.
The Imamate of Aussa declined over the next century while Harar regained its independence under `Ali ibn Da`ud, the founder of a dynasty that ruled the city from 1647 until 1875, when it was conquered by Egypt.

Harar was very dependent on Berbera for trade since the Middle Ages.
According to Richard Francis Burton, who visited both Berbera and Harar during his travels, he repeated a famous Harari saying he heard in 1854: "He who commands at Berbera, holds the beard of Harar in his hands."
A significant portion of the trade between the two historic towns was controlled by merchants belonging to the Habr Awal Somali clan, who also partook in the trade of the renowned Harari coffee bean, which were named Berbera Coffee in the international market.
Following the death of Emir Nur, Harar began a steady decline in wealth and power. A later ruler, Imam Muhammed Jasa, a kinsman of Ahmad Gragn, yielded to the pressures of increasing Oromo raids and in 1577 abandoned the city, relocating to Aussa and making his brother ruler of Harar. The new base not only failed to provide more security from the Oromos, it attracted the hostile attention of the neighboring Afar people, who raided caravans traveling between Harar and the coast. The Imamate of Aussa declined over the next century while Harar regained its independence under `Ali ibn Da`ud, the founder of a dynasty that ruled the city from 1647 until 1875, when it was conquered by Egypt.
Harar was very dependent on Berbera for trade since the Middle Ages. According to Richard Francis Burton, who visited both Berbera and Harar during his travels, he repeated a famous Harari saying he heard in 1854: "He who commands at Berbera, holds the beard of Harar in his hands." A significant portion of the trade between the two historic towns was controlled by merchants belonging to the Habr Awal Somali clan, who also partook in the trade of the renowned Harari coffee bean, which were named Berbera Coffee in the international market.
Harar