Aśauca-vidhi (Rules of Impurity) within Śrāddha-kalpa — Chapter on Testing/Selecting Brahmanas and Honoring the Atithi
उपपातकसंयुक्ताः पातकैश्च विशेषतः / वेदे नियोगदातारो लोभमोहफलर्थिनः
upapātakasaṃyuktāḥ pātakaiśca viśeṣataḥ / vede niyogadātāro lobhamohaphalarthinaḥ
Those tainted with subsidiary sins (upapātaka) and, all the more, with grave transgressions; who pose as givers of Vedic ‘niyoga’, seeking reward through greed and delusion.