As the mistake was carried out from the god Indra, he grants Hanuman a wish that his overall body can be as solid as Indra's Vajra, and that his Vajra could also not hurt him. In conjunction with Indra other gods have also granted him needs: the God Agni granted https://shanimandirinadelaide.blogspot.com/2024/06/hanuman-mandir-adelaide-embracing.html/