Protesters hold up pictures of Jordan’s King Abdullah and pilot Muath al-Kassasbeh as they chant slogans during a rally in Amman to show their loyalty to the King and against ISIS, February 5, 2015.

An ISIS cleric who objected to the group’s decision to burn to death a captive Jordanian pilot has been removed from his post and will be put on trial, the Syrian Observatory for Human Rights said on Friday.

The cleric, a Saudi national, had voiced his objections during a meeting of an ISIS clerical body in the town of al-Bab in Aleppo province, said Rami Abdulrahman, who runs the Observatory.

The killing was been widely condemned by Muslim clerics. Even some al Qaeda-linked figures denounced it as un-Islamic.

A video released by ISIS militants on Tuesday showed the pilot, Muath al-Kassasbeh, being burnt alive in a cage.

The Saudi cleric had said those responsible for the killing should face trial, the Observatory said. Abdulrahman, whose organisation gathers information via a network of sources on the ground, said the group may now kill the cleric.

ISIS posted a religious edict on Twitter, which ruled that it is permissible in Islam to burn an infidel to death.

Muslim clerics have said it is forbidden to kill anyone that way.

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