As the error was completed from the god Indra, he grants Hanuman a wish that his body could well be as strong as Indra's Vajra, and that his Vajra may not damage him. Together with Indra other gods have also granted him needs: the God Agni granted Hanuman a wish https://adelaidehindutemple.school.blog/2024/09/29/hanuman-mandir-south-australia-a-premier-hindu-temple-in-adelaide/