Hanuman was a person of those 4 monkeys. This monkey team was instrumental in supplying Rama important information about Sita. They helped him build a bridge through the seas, and cross more than using a monkey army that efficiently stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ https://devinbxtpl.blogminds.com/5-easy-facts-about-shabar-mantra-described-34415623