Manusmriti
अज्ञानात् प्राश्य विण्मूत्रं सुरासंस्पृष्टमेव च । पुनः संस्कारमर्हन्ति त्रयो वर्णा द्विजातयः ॥ १५० ॥
(Men of) the three twice-born castes who have unintentionally swallowed ordure or urine, or anything that has touched Sura, must be initiated again.
english translation
ajJAnAt prAzya viNmUtraM surAsaMspRSTameva ca । punaH saMskAramarhanti trayo varNA dvijAtayaH ॥ 150 ॥
hk transliteration by Sanscript