The works of Ādi Śaṅkarācārya

Sanatsujātīyam

p. 259

p. 259

एकवेदस्य चाज्ञानाद्वेदास्ते बहवोऽभवन् ।

In plain words

And because the one Veda was not known, the Vedas became many for you.

Close to the Sanskrit

And from ignorance of the one Veda, those Vedas of yours became many.