As the mistake was done from the god Indra, he grants Hanuman a would like that his system might be as strong as Indra's Vajra, and that his Vajra can also not hurt him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://presslive360.blogspot.com/2024/09/the-hindu-temple-in-south-australia.html