Shiva Purana
पुनः संपूज्य देवेशं सम्यगाचम्य देशिकः ॥ हुत्वा चैव यथान्यायं स्वजात्या वैश्यमुद्धरेत् ॥ ४५ ॥
Again the priest worshiped Lord of the gods and washed himself thoroughly. After offering oblations in accordance with the prescribed rituals, one should rescue a vaiśya from his own race.
english translation
punaH saMpUjya devezaM samyagAcamya dezikaH ॥ hutvA caiva yathAnyAyaM svajAtyA vaizyamuddharet ॥ 45 ॥
hk transliteration by Sanscript