He says: Is fear of Allah obligatory? Fear of Allah is one of the pillars of iman.

One of the pillars of iman, one of the pillars of iman is faith in Allah.

And among faith in Allah, the Exalted, are fear, hope, awe, taqwa, reliance, and seeking help.

So fear of Allah is a pillar. That is why Allah, the Blessed and Exalted, says in the narration: I do not combine two fears or two securities for My servant.

Whoever fears Me in this world, I will grant him security in the Hereafter. And whoever feels secure from Me in this world, I will make him fear in the Hereafter.

A person must fear Allah. Allah, the Blessed, says: They call upon Us in hope and fear, and He says: They call upon their Lord in fear and hope.

It is necessary to have fear of Allah, the Blessed and Exalted.