Shiva Purana
नातप्ततपसो यांति शिवलोकमनामयम् ॥ शिवानुग्रहसद्धेतुस्तप एव महामुने॥ ४॥
Those who have not performed austerities do not go to Śiva’s region which is free from ailments. O great sage, penance alone leads to Śiva’s blessings.
english translation
nAtaptatapaso yAMti zivalokamanAmayam ॥ zivAnugrahasaddhetustapa eva mahAmune॥ 4॥
hk transliteration by Sanscript