The Vishnu Purana
Chapters
The Vishnu Purana: Book I: Chapter XXII

All these monarchs, and whatever others may be invested with authority by the mighty Vishńu, as instruments for the preservation of the world; all the kings who have been, and all who shall be; are all, most worthy Brahman, but portions of the universal Vishńu. The rulers of the gods, the rulers of the Daityas, the rulers of the Dánavas, and the rulers of all malignant spirits; the chief amongst beasts, amongst birds, amongst men, amongst serpents; the best of trees, of mountains, of planets; either those that now are, or that shall hereafter be, the most exalted of their kind; are but portions of the universal Vishńu. The power of protecting created things, the preservation of the world, resides with no other than Hari, the lord of all. He is the creator, who creates the world; he, the eternal, preserves it in its existence; and he, the destroyer, destroys it; invested severally with the attributes of foulness, goodness, and gloom. By a fourfold manifestation does Janárddana operate in creation, preservation, and destruction. In one portion, as Brahmá, the invisible assumes a visible form; in another portion he, as Maríchi and the rest, is the progenitor of all creatures; his third portion is time; his fourth is all beings: and thus he becomes quadruple in creation, invested with the quality of passion. In the preservation of the world he is, in one portion, Vishńu; in another portion he is Manu and the other patriarchs; he is time in a third; and all beings in a fourth portion: and thus, endowed with the property of goodness, Purushottama preserves the world. When he assumes the property of darkness, at the end of all things, the unborn deity becomes in one portion Rudra; in another, the destroying fire; in a third, time; and in a fourth, all beings: and thus, in a quadruple form, he is the destroyer of the world. This, Brahman, is the fourfold condition of the deity at all seasons.

Brahmá, Daksha, time, and all creatures are the four energies of Hari, which are the causes of creation. Vishńu, Manu and the rest, time, and all creatures are the four energies of Vishńu, which are the causes of duration. Rudra, the destroying fire, time, and all creatures