Bhagavad Gita 8.18

अव्यक्ताद्व्यक्तयः सर्वाः प्रभवन्त्यहरागमे।रात्र्यागमे प्रलीयन्ते तत्रैवाव्यक्तसंज्ञके॥

avyaktādvyaktayaḥ sarvāḥ prabhavantyaharāgame |rātryāgame pralīyante tatraivāvyaktasaṃjñake ||

From the Unmanifested, all the manifested worlds proceed upon the arrival of the 'day'; upon the arrival of the 'night', they dissolve indeed into that which is known as the Unmanifested.

At the dawn of that day, all objects in manifestation stream forth from the Unmanifest, and when evening falls, they are dissolved back into it again.

Our plain-language meaning of this verse is waiting for scholar review.