विधिहीनमसृष्टान्नं मन्त्रहीनमदक्षिणम् | श्रद्धाविरहितं यज्ञं तामसं परिचक्षते

vidhihīnamasṛṣṭānnaṃ mantrahīnamadakṣiṇam . śraddhāvirahitaṃ yajñaṃ tāmasaṃ paricakṣate

They declare that sacrifice as ‘done through tamas’ which is contrary to injunction, in which food is not distributed, in which mantras are not used, in which offerings are not made to priests, and which is devoid of faith.

शास्त्रविधि से रहित, अन्नदान से रहित, बिना मन्त्रों, बिना दक्षिणा और बिना श्रद्धा के किये हुए यज्ञ को तामस यज्ञ कहते हैं।।