Vishnupurana 5.37.20

5.37.20

devair vijñāpyate cedaṃ athātraiva ratis tava
tat sthīyatāṃ yathākālam ākhyeyam anujīvibhiḥ //

Then there came to Keśava, when he was private and alone, a messenger from the gods, who addressed him with reverence, and said, "I am sent to you, O lord, by the deities, and do thou hear what Indra, together with the Viśwas, Maruts, Ádityas, Sádhyas, and Rudras, respectfully represents. More than a hundred years have elapsed since thou, in favour to the gods, hast descended upon earth, for the purpose of relieving it of its load. The demons have been slain, and the burden of earth has been removed: now let the immortals once again behold their monarch in heaven. A period exceeding a century has passed: now, if it be thy pleasure, return to Swarga. This is the solicitation of the celestials. But should such not be thy will, then remain here as long as it may be desirable to thy dependants." To this Krishńa replied, "All that thou hast said I am well aware of. The destruction of the Yádavas by me has commenced. The burdens of the earth are not removed until the Yádavas are extirpated. I will effect this also in my descent, and quickly; for it shall come to pass in seven nights. When I have restored the land of Dwáraká to the ocean, and annihilated the race of Yadu, I will proceed to the mansions of the immortals. Apprise the gods, that, having abandoned my human body, and accompanied by Sankarshańa, I will then return to them. The tyrants that oppressed the earth, Jarásandha and the rest, have been killed; and a youth, even of the race of Yadu, is, no less than they, an incumbrance. When therefore I have taken away this great weight upon earth, I will return to protect the sphere of the celestials. Say this to them." The messenger of the gods, having received this reply, bowed, and took his heavenly course to the king of the gods.