In 845-846 the lawless raids of Bedouin tribes compelled the caliph Wathiq to send his Turkish general Bogha, who was more successful in the north than in the centre and south of Arabia in restoring peace.
Leaving the government of the capital in the hands of his son Harun al-Wathiq, he established himself at Samaria.
In fact, from the time of Wathiq, the Caliphate became the plaything of the Turkish guard, and its decline was continuous.
- His son Wathiq, who succeeded, though not in the least to be compared with Mamun, had yet in common with him a thirst for knowledge - perhaps curiosity would be a more appropriate term - which prompted him, as soon as he became caliph, to send the famous astronomer Mahommed b.
Employed with success by Harun al-Rashid after the disgrace of the Barmecides, and occasionally by his successors, but Wathiq was the first to imprison high officials and fine them heavily on the specific charge of peculation.
Nasr al-Khoza`i was seized and brought to ISamarra, where Wathiq beheaded him in person.
The only other event of importance in the reign of Wathiq was a rising of the Arabian tribes in the environs of Medina, which the Turkish general Bogha with difficulty repressed.
When he reached Samarra with his prisoners, Wathiq had just died (August 846).
That the predominance of the praetorians was already established is clear from the fact that Wathiq gave to two Turkish generals, Ashnas and Itakh respectively, the titular but lucrative supreme government of all the western and all the eastern provinces.
- As Wathiq had appointed no successor the vizier Mahommed Zayyat had cast his eye on his son Mahommed, who was still a child, but the generals Wasif and Itakh, seconded by the upper cadi Ibn abi Da`ud, refused their consent, and offered the supreme power to Wathiq's brother Ja`far, who at his installation adopted the name of al-Motawakkil `ala 'llah (" he who trusts in God").
The upper cadi Ibn abi Da`ud, the leader of the movement against orthodoxy, who had stood in great esteem with Mamun and had fulfilled his high office under the reigns of Motasim and Wathiq, had a stroke of paralysis in the year 848.
Wasif, proclaimed as caliph one of the sons of Wathiq with the title of al-Mohtadi billah ("the guided by God"), who, however, refused to occupy the throne until his predecessor had solemnly abdicated.
To another Turk, Itakh, the caliph Wathiq gave a titular authority over all the eastern provinces.