As the error was accomplished by the god Indra, he grants Hanuman a wish that his system can be as powerful as Indra's Vajra, and that his Vajra might also not harm him. In conjunction with Indra other gods have also granted him wishes: the God Agni granted Hanuman a https://indiantempleadelaide.home.blog/2024/06/14/discover-the-essence-of-hinduism-at-the-hanuman-mandir/