As the error was accomplished through the god Indra, he grants Hanuman a wish that his system could be as powerful as Indra's Vajra, and that his Vajra also can not harm him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman a desire https://panchmukhihanumanmandirnearme.blogspot.com/2025/03/shani-dev-temple-sacred-space-for.html