Mbh 5.119.1b

Let a fourth, foremost of all, be begotten upon her by thee. And thus let the number of steeds, eight hundred, be regarded by thee as full, and let me also, being freed from thy debt, go and practise ascetic penances as I list.” Viswamitra then, beholding Galava in the company of the bird, and that highly beautiful maiden, said, “Why, O Galava, didst thou not give me this maiden before? Four sons then, sanctifiers of my race, would all have been mine alone. I accept this maiden of thine for begetting upon her one son. As regards the steeds, let them graze in my asylum.” Saying this, Viswamitra of great effulgence began to pass his time happily with her. And Madhavi bore him a son of the name of Ashtaka. And as soon as that son was born, the great Muni Viswamitra addressed him to both virtue and profit, and gave him those six hundred steeds. Ashtaka then went to a city, bright as the city of Soma. And Kusika’s son Viswamitra also having made over the damsel to his disciple, himself went into the woods. And Galava also, with his friend Suparna, having in this way succeeded in giving his preceptor the fee he had demanded, with a cheerful heart addressed that maiden and said, “Thou hast borne a son who is exceedingly charitable, and another who is exceedingly brave, and a third who is devoted to truth and righteousness, and yet another who is a performer of great sacrifices. O beautiful maiden, thou hast, by these sons, saved not only thy father, but four kings and myself, also. Go now, O thou of slender waist.” Saying this, Galava dismissed Garuda that devourer of snakes, and returning the maiden unto her father himself went into the woods.’”