Shiva Purana
साध्या तस्मान्मयि शद्धा मां वशीकर्तुमिच्छता ॥ श्रद्धा हेतुस्स्वधर्मस्य रक्षणं वर्णिनामिह ॥ १७ ॥
Therefore it is possible for one who wishes to subdue Me to be faithful to Me. Faith is the cause of the protection of one’s own religious duties in this world by the varṇas.
english translation
sAdhyA tasmAnmayi zaddhA mAM vazIkartumicchatA ॥ zraddhA hetussvadharmasya rakSaNaM varNinAmiha ॥ 17 ॥
hk transliteration by Sanscript