Skandapurana 17.18.267

17.18.267

sthānaṃ nāsti tṛtīyasya brahmāṃḍaṃ sakalaṃ kṛtam ..
ahardaṇḍo jagatsraṣṭā brahmadaṃḍāyate tadā .. 267 ..

There was no place for the third; the entire egg of Brahmā was occupied. / The creator of the world then became the staff of Brahmā, a staff of daytime.