Devibhagavatapurana 3.29.17

3.29.17

kabandhaṃ ghātayitvāsau śāpāccāmocayatprabhuḥ |
vacanāttasya hariṇā sakhyaṃ cakre'tha rāghavaḥ ||

Then the Lord Râmachandra killed Kabandha and freed him from his curse; and, through his advice, he made friendship with Sugrîva, the king of the monkeys, and was thus bound under a tie.