Shiva Purana
एतद्रहस्यम्परमं लब्ध्वा सूतान्मुनीश्वराः ॥ काश्यामेव समासीना मुक्ताश्शिवपदं ययुः ॥ ५८॥
After securing this great secret from Sūta, the sages remained in Kāśī and attained Śiva’s abode by attaining salvation.
english translation
etadrahasyamparamaM labdhvA sUtAnmunIzvarAH ॥ kAzyAmeva samAsInA muktAzzivapadaM yayuH ॥ 58॥
hk transliteration by Sanscript