Hanuman was 1 of such four monkeys. This monkey group was instrumental in offering Rama critical details about Sita. They aided him create a bridge over the seas, and cross in excess of by using a monkey army that correctly stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ https://www.youtube.com/@AacharyaGoldieMadan/