Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 37
Sanskrit:
शयानौ युधि निर्भिन्नहृदयौ रामशायकै: ।तच्चित्तौ जहतुर्देहं यथा प्राक्तनजन्मनि ॥ ३७ ॥
ITRANS:
śayānau yudhi nirbhinna-hṛdayau rāma-śāyakaiḥtac-cittau jahatur dehaṁyathā prāktana-janmani
Translation:
Pierced by the arrows of Lord Rāmacandra, both Kumbhakarṇa and Rāvaṇa lay on the ground and left their bodies, fully absorbed in thought of the Lord, just as they had in their previous births as Hiraṇyākṣa and Hiraṇyakaśipu.