And Tama sacrifice is that which is performed against the ordinances of the Shastras in which food is not distributed, Mantras are not recited, fees are not paid to the assisting priests and which is void of faith.
विधिहीनमसृष्टान्नं मन्त्रहीनमदक्षिणम्। श्रद्धाविरहितं यज्ञं तामसं परिचक्षते॥