He remained in possession of Mohammerah with enjoyment of the title Nusrat-ul-Mulk until his death in October 1881.

Jabir al- Kaabi was the leader of the Bani Kaab Arab tribe and the shaikh of Mohammerah during most of the nineteenth century.

He therefore confined himself to an attitude of neutrality while maintaining good relations with both the Persian and Ottoman governments, and notably with the Walis of Baghdad.

He thus turned to an ancient Arabian diplomatic practice: he married Noura, the daughter of the Sheikh of the Rabi'ah, Talal, in order to appease the opposition of that tribe.

[4] The constant conflict between the Ottomans and the Qajars, the weakening of these empires, as well as the intelligent diplomacy of Sheikh Jabir would result in the Persian emperor, Naser al-Din Shah Qajar, recognising Arabistan as the dominion of Sheikh Jabir and his successors.