The works of Ādi Śaṅkarācārya

Chāndogyopaniṣadbhāṣyam

Verse 165

अथ यदवोचऽ स्व प्रपद्य इत्यृग्वेदप्रपद्ये यजुर्वेद प्रपद्ये सामवेद प्रपद्य इत्येवतदवोच्च तदवोचम् ॥ ७ ॥

In plain words

Now, when I spoke the words 'I take refuge in svaḥ,' what I meant was precisely this: 'I take refuge in the Rigveda, I take refuge in the Yajurveda, I take refuge in the Samaveda.'

Close to the Sanskrit

Now, what I spoke as 'I resort to svaḥ',—[meaning] 'I resort to the Rigveda, I resort to the Yajurveda, I resort to the Samaveda', precisely that I spoke, that I spoke.