As the error was completed by the god Indra, he grants Hanuman a desire that his body can be as powerful as Indra's Vajra, Which his Vajra may also not hurt him. Along with Indra other gods have also granted him needs: the God Agni granted Hanuman a want that https://manuelbrbhf.wizzardsblog.com/37002780/the-5-second-trick-for-hanuman