Manusmriti
अभोज्यमन्नं नात्तव्यमात्मनः शुद्धिमिच्छता । अज्ञानभुक्तं तूत्तार्यं शोध्यं वाऽप्याशु शोधनैः ॥ १६० ॥
He who desires to be pure, must not eat forbidden food, and must vomit up such as he has eaten unintentionally, or quickly atone for it by (various) means of purification.
english translation
abhojyamannaM nAttavyamAtmanaH zuddhimicchatA । ajJAnabhuktaM tUttAryaM zodhyaM vA'pyAzu zodhanaiH ॥ 160 ॥
hk transliteration by Sanscript