Markandeyapurana 5.21

5.21

yadindradehajaṃ tejastanmumoca svayaṃ vṛṣaḥ /
kuntyā jāto mahātejāstato rājā yudhiṣṭhiraḥ //

The birds spoke:
“Then the gods descended with portions of their glory from heaven to earth, to benefit the creatures and to alleviate the burden of the Earth. Dharma himself relinquished the glory which is innate in the body of Indra, then was born of Kuntī the resplendent raja Tudhiṣṭhira; Vāyu relinquished his might, then was born Bhīma; and from the half of Indra’s power was born Dhanañjaya, the son of Pṛthā; Tama’s two sons, resembling Indra in form, of glorious dignity, were born of Mādrī. Thus the adorable Indra became incarnate in five forms. His auspicious wife was born as Kṛṣṇa from Agni: she, Kṛṣṇa, is the wife of Indra alone, and of no one else. The lords of ascetics can even multiply their bodies.