tāmasaḥ parikīrtitaḥ

niyatasya-prescribed duties; tu-but; sannyasah-renunciation; karmanah-activities; na-never; upapadyate-is deserved; mohat-by illusion; tasya-of which; parityagah-renunciation; tamasah-in the mode of ignorance; parikirtitah-declared.