इति श्वेताश्वतराणां मन्त्रोपनिषदि ।'सेयं देवतैक्षत' 'एकमेवाद्वितीयम्' इति च्छान्दोग्ये ॥
In plain words
Thus it is found in the Shvetashvatara Upanishad. And in the Chandogya: 'That deity willed,' and 'One alone, without a second.'
Close to the Sanskrit
Thus in the mantra Upanishad of the Shvetashvataras. And 'That deity willed', 'One alone without a second', in the Chandogya.