At some point after 1672, Aussa declined and temporarily came to an end in conjunction with Imam Umar Din bin Adam's recorded ascension to the throne.
[1] On 26 September 1725, the Mudaito Afars and their Harla allies invaded Aussa from the North-east Eli Da'ar and central-west of Andhar Kalu and burnt the state of Awsa.
The primary symbol of the sultan was a silver baton, which was considered to have magical properties.
[5] In June 1764, the Mudaito extended their area of control by overpowering Imamate tribes in and around Awsa.
[6] In July 1809, Amir Mahammad bin A'as Ali confronted the Mudaito to avenge his father's killing in Awsa but failed.