In the Kishkindha Kanda of the Valmiki Ramayana, Rama kills Vali and makes Sugriva king. Sugriva has promised to help search for Sita. The rains come and go, and Sugriva does nothing. Rama sends his brother Lakshmana to Kishkindha to remind him.
Lakshmana reminds Sugriva of Brahma’s words: “for the ungrateful, there is no atonement.” He adds, in Arjun Bharadwaj’s translation: “If you wish to repay Rāma’s help, you must immediately look for Sītā.” Sugriva’s wife Tara answers for him: “He is neither ungrateful nor dishonest.” Sugriva then sends out the search parties.