Ramayana
राक्षसाश्च महावीर्या वानराश्च महाबलाः । सर्व एव समाजग्मुर्महात्मानः कुतूहलात् ॥ 7-96-7 ॥
And the rakshasas of great valor and the vanaras of great strength, all those great-souled ones, gathered together out of curiosity.
english translation