Rama Sends Lakshmana to Summon Sugriva
Rama, living on Malyavan under the clear sky and moon, is overcome by grief for Sita. Believing Sugriva has become ungrateful and forgotten his promise, he instructs Lakshmana to go to Kishkindha — either to bring the monkey king back to serve their purpose, or to kill him like Vali if he remains lazy and ungrateful.
When Raghava, together with Soumitri, lived under Sugriva's protection on the slopes of Malyavan, he saw the clear sky. In that clear sky, the destroyer of enemies saw the unblemished moon, the planets, the nakshatras (lunar mansions) and the stars. The breeze was redolent with the fragrance of water lilies, blue lotuses and lotuses. The dweller in that cool mountain was suddenly stirred. The one with dharma in his soul was distracted at the thought of Sita captive in the rakshasa's abode.
One morning, he spoke to the brave Lakshmana.
"O Lakshmana! Go to Kishkindha and seek out the lord of monkeys. He is intoxicated and ungrateful, follows the dharma of the vulgar and is only learned about his own selfish interests. That stupid one, the worst of the lineage, has been instated by me in the kingdom and all the monkeys, apes and bears show him homage. O mighty-armed one! O extender of Raghu's lineage! With your aid, it is for his sake that I slew Vali in the forest of Kishkindha. I think that worst of monkeys to be the most ungrateful on earth. O Lakshmana! That stupid one ignores me and does not know me now. I think that, because of his ignorance, he does not know how to honour an agreement. He ignores me, though I have performed a good deed for him. If he lazily indulges in the happiness of desires, you must send him along the path followed by Vali, the destination of all beings. O Kakutstha! But if that bull among monkeys acts so as to serve our purpose, quickly bring him here. Go without any delay."
Lakshmana was always devoted to the words of his elders. Thus addressed by his brother, he grasped his beautiful bow, arrows and the string of the bow and departed. Aranyaka Parva, Chapter 563