Kiskindhākānda - Canto 40

Pointing out in pursuance of Śrī Rāma's command to one of his generals, Vinata by name, the regions in the east which could be penetrated into by monkeys, detailing the tracts worthy of note, and entrusting him with the task of conducting a search for Sītā in those regions, Sugrīva enjoins the general to return within a month after the work, adding that anyone returning after a month will be punished.