Skandapurana 1.4.43.128

1.4.43.128

na nīcairnāpyavidvadbhirnānātmajñairviśeṣataḥ..
yeṣāṃ trīṇyavadātāni yonirvidyā ca karma ca.. 45.128 ..

not with the low, nor with the unlearned, especially not with those who do not know the Self. / Those whose three things are pure—origin, learning, and conduct—