As the error was accomplished because of the god Indra, he grants Hanuman a desire that his entire body could be as solid as Indra's Vajra, and that his Vajra might also not harm him. Together with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://hanumantempleadelaide.video.blog/2024/08/08/gaushala-shewa-a-sacred-initiative-at-hanuman-temple-adelaide/