Kautilya's Arthashastra 4.7.28

4.7.28

saṃvatsareṇa patati patitena samācaran /
yājanādhyāpanād yaunāt taiś cānyo 'pi samācaran //E

Whoever associates himself with such persons as perform forbidden rites, shall with his other associates, if any, forfeit within a year the privileges of conducting or superintending a sacrifice, of teaching, and of giving or receiving gifts.