“And whoever kills a believer intentionally, their reward will be Hell. Therein they will stay indefinitely. Allah will be displeased with them, condemn them, and will prepare for them a tremendous punishment.” (Qur’an 4:93)

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It is said that they were described by the Blessed Prophet (saw) as a people who would kill the Muslims and leave the Mushrik.
They came for the people of Oman. They came for the Ibadi, and they were eventually routed and thrashed.
The Battle of Bidiyyah (1813)
Refusing to subjugate themselves or adopt the strict Wahhabi doctrines, the Hajari warriors chose to fight to the death.
The Al-Hajariin launched a daring, direct assault on Al-Mutairi’s own military camp.
While the Saudi commander repelled the first two tribal waves, the third Omani charge shattered his lines. Mutlaq Al-Mutairi was killed on the battlefield, and his army was decisively routed.
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May Allah Guide the Ummah.
May Allah Forgive the Ummah.