This verse is found in the Laghu-bhāgavatāmṛta (1.451). The Brahmā mentioned herein is not a living entity. Sometimes, when there is a scarcity of living entities to take charge of Brahmā's post, Mahā-Viṣṇu expands Himself as Lord Brahmā. This Brahmā is not considered to be a living entity; He is an expansion of Viṣṇu.