Manusmriti

siva.sh/manusmriti/11/180

संवत्सरेण पतति पतितेन सहाचरन् । याजनाध्यापनाद् यौनान्न तु यानासनाशनात् ॥ १८० ॥

sanskrit

He who associates with an outcast, himself becomes an outcast after a year, not by sacrificing for him, teaching him, or forming a matrimonial alliance with him, but by using the same carriage or seat, or by eating with him.

english translation

saMvatsareNa patati patitena sahAcaran | yAjanAdhyApanAd yaunAnna tu yAnAsanAzanAt || 180 ||

hk transliteration by Sanscript