As the mistake was accomplished because of the god Indra, he grants Hanuman a want that his overall body can be as sturdy as Indra's Vajra, and that his Vajra may also not damage him. Together with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://hindutemplesinadelaide.home.blog/2024/11/16/hindu-temple-in-adelaide-a-spiritual-sanctuary-for-the-community/