Kiskindhākānda - Canto 50

The time appointed by Sugrīva for finding out the whereabouts of Sītā in the southern quarter having been exceeded in ransacking the caves of the Vindhyan range, which were hard to explore, Hanumān and others, who were tormented with hunger and thirst, catch sight of a cave known by the name of Rksabila. Concluding, from the presence of birds with wet wings at the entrance of the cave, that there must be water inside, the monkeys enter the cave, which was enveloped in thick darkness, in a line holding the hand of one another. Proceeding to a short distance, the monkeys behold an ascetic woman in a strange spot illumined by trees of gold. Greeting her, Hanumān inquires of her the name of the place.