Shiva Purana
एकादश्या व्रतं कृत्वा द्वादश्यां चैव पारणाम् ॥ करिष्यामीति सुदृढसंकल्पस्तु नराधिपः ॥ ३१॥
The king had the firm resolve that he would perform the rite of breaking fast on the Dvādaśī day.
english translation
ekAdazyA vrataM kRtvA dvAdazyAM caiva pAraNAm ॥ kariSyAmIti sudRDhasaMkalpastu narAdhipaH ॥ 31॥
hk transliteration by Sanscript