Shiva Purana
उचितां निष्कृतिं कुर्यात्पूजाहोमजपादिभिः ॥ आसमाप्तेर्व्रतस्यैवमाचरेन्न प्रमादतः ॥ ७० ॥
One should perform appropriate purification by performing worship, sacrifice, chanting and other rituals. One should not neglect to perform this ritual at the end of the vow.
english translation
ucitAM niSkRtiM kuryAtpUjAhomajapAdibhiH ॥ AsamAptervratasyaivamAcarenna pramAdataH ॥ 70 ॥
hk transliteration by Sanscript