Mbh 13.14.7g

And Mahadeva said unto him,--"Thou shalt become one of my attendants."--Indeed, the puissant Lord further bestowed upon him the boon of a hundred millions of children. The Master without birth, of all creatures further gave the Danava the region known by the name of Kusadwipa for his kingdom. Another great Asura, of the name of Satamukha, was created by Brahma. For a hundred years he poured on the sacrificial fire (as offerings unto Mahadeva) the flesh of his own body. Gratified with such penances, Sankara said unto him,--"What can I do for thee?"--Satamukha replied unto him, saying,--"O thou that art most wonderful, let me have the power of creating new creatures and animals. Give also unto me, O foremost of all deities, eternal power."--The puissant lord, thus addressed by him, said unto him,--"So be it."--The Self-born Brahma, concentrating his mind in Yoga,[41] in days of yore, made a sacrifice for three hundred years, with the object of obtaining children. Mahadeva granted him a thousand sons possessed of qualifications commensurate with the merits of the sacrifice. Without doubt, thou knowest, O Krishna, the lord of Yoga, him that is, who is sung by the deities. The Rishi known by the name of Yajnavalkya is exceedingly virtuous. By adoring Mahadeva he has acquired great fame. The great ascetic who is Parasara's son, viz., Vyasa, of soul set on Yoga, has obtained great celebrity by adoring Sankara. The Valikhilyas were on a former occasion disregarded by Maghavat. Filled with wrath at this, they gratified the illustrious Rudra. That lord of the universe, that foremost one of all the deities, thus gratified by the Valikhilyas, said unto them,--"Ye shall succeed by your penances in creating a bird that will rob Indra of the Amrita." Through the wrath of Mahadeva on a former occasion, all the waters disappeared. The deities gratified him by performing a sacrifice called Saptakapala, and caused, through his grace, other waters to flow into the worlds.