Vishnupurana 2.11.25

2.11.25

tena prīṇāty aśeṣāṇi bhūtāni bhagavān raviḥ
pitṛdevamanuṣyādīn evam āpyāyayaty asau //

The sovereign sun, oh Brahman, the cause of day and night, perpetually revolves, affording delight to the gods, to the progenitors, and to mankind. Cherished by the Sushumna ray of the sun, the moon is fed to the full in the fortnight of its growth; and in the fortnight of its wane the ambrosia of its substance is perpetually drunk by the immortals, until the last day of the half month, when the two remaining digits are drunk by the progenitors: hence these two orders of beings are nourished by the sun. The moisture of the earth, which the sun attracts by his rays, he again parts with for the fertilization of the grain, and the nutriment of all terrestrial creatures; and consequently the sun is the source of subsistence to every class of living things, to gods, progenitors, mankind, and the rest. The sun, Maitreya, satisfies the wants of the gods for a fortnight (at a time); those of the progenitors once a month; and those of men and other animals daily.