Mbh 5.106.3b

And beholding the great Rishi Viswamitra, who was endued with high wisdom, standing there with that food on his head, himself subsisting all the while on air, Dharma accepted that food which was still warm and fresh. And having eaten that food, the god said,--“Gratified am I, O regenerate Rishi.” And saying this, he went away. And at those words of Dharma, Viswamitra divested of Kshatriyahood because endued with the status of a Brahmana and was filled with delight[12]. And pleased as he was with the services and devotion of his discipline, the ascetic Galava, Viswamitra, addressed him and said, “With my leave, O Galava, go whithersoever thou mayest wish.” Thus commanded by his preceptor, Galava, highly pleased, said in a sweet voice unto Viswamitra of great effulgence, “What final gift shall I make thee in consequence of thy services as preceptor? O giver of honours, it is in consequence of the (final) present that a sacrifice becometh successful. The giver of such gifts obtains emancipation. Indeed, these gifts constitute the fruit (that one enjoys in heaven). They are regarded as peace and tranquillity personified. What, therefore, shall I procure for my preceptor? Oh, let that be said.” The illustrious Viswamitra knew that he had really been conquered by Galava by means of the latter’s services, and the Rishi, therefore, sought to dismiss him by repeatedly saying, “Go, Go.” But though repeatedly commanded by Viswamitra to go away, Galava still addressed him saying, “What shall I give?” And seeing this obstinacy on the part of ascetic Galava, Viswamitra felt a slight rise of anger and at last said, “Give me eight hundred steeds, every one of which should be as white as the rays of the moon, and every one of which should have one ear black. Go now, O Galava, and tarry not.”’”