Valmiki Ramayana Ayodhya Kanda Sarga 75 Shloka 53

आर्यः esteemed one, यस्य whose, अनुमते with sanction, गतः exiled, that person मूढः foolish one, त्यक्तधर्मरतिः abandoned righteous conduct, धर्मदारान् rightfully married wife, परित्यज्य having forsaken, परदारान् other's wife, निषेवताम् may resort.

May the one who counselled the exile of my esteemed brother acquire the sin in the same way a foolish person who abandons righteous conduct and forsakes his rightfully married wife and resorts to other man's wife acquires