Shiva Purana
पर्य्यटन्पृथिवीमेतां स्वपाद स्पर्शपुण्यतः ॥ पवित्रयन्परे धाम्नि निमग्नहृदयोन्वहम् ॥ १४ ॥
Traveling this earth by the merit of touching his feet Purifying them daily with their hearts immersed in the Supreme Abode.
english translation
paryyaTanpRthivImetAM svapAda sparzapuNyataH ॥ pavitrayanpare dhAmni nimagnahRdayonvaham ॥ 14 ॥
hk transliteration by Sanscript