Shiva Purana
महेन्द्रपर्वते रामः स्थितस्तपसि तिष्ठति ॥ कल्पांते पुनरेवासावृषिस्थानमवाप्स्यति ॥ ५९॥
Rāma stays on the mountain Mahendra and performs penance. At the end of the Kalpa he will attain the region of the sage.
english translation
mahendraparvate rAmaH sthitastapasi tiSThati ॥ kalpAMte punarevAsAvRSisthAnamavApsyati ॥ 59॥
hk transliteration by Sanscript