Mahabharata 6.39.1

अर्जुन उवाच · arjuna uvāca

ये शास्त्रविधिमुत्सृज्य यजन्ते श्रद्धयान्विताःतेषां निष्ठा तु का कृष्ण सत्त्वमाहो रजस्तमः

ye śāstravidhimutsṛjya yajante śraddhayānvitāḥteṣāṃ niṣṭhā tu kā kṛṣṇa sattvamāho rajastamaḥ

Our plain-language meaning of this verse is waiting for scholar review.