Ramayana
वायद्रामकथा वीर चरिष्यति महीतले । तावच्छरीरे वत्स्यन्ति प्राणा मम न संशयः ॥ 7-40-16 ॥
As long as the story of Rama shall circulate upon the face of the earth, O hero, so long shall the life-breaths dwell within my body, of this there is no doubt.
english translation