Vishnupurana 1.1.28

1.1.28

tataś ca prāha bhagavānvasiṣṭho me pitāmahaḥ /
pulastyena yaduktaṃ te sarvametadbhaviṣyati //

Being thus admonished by my venerable grandsire, I immediately desisted from the rite, in obedience to his injunctions, and Vaśisht́ha, the most excellent of sages, was content with me. Then arrived Pulastya, the son of Brahmá, who was received by my grandfather with the customary marks of respect. The illustrious brother of Pulaha said to me; Since, in the violence of animosity, you have listened to the words of your progenitor, and have exercised clemency, therefore you shall become learned in every science: since you have forborne, even though incensed, to destroy my posterity, I will bestow upon you another boon, and, you shall become the author of a summary of the Puráńas; you shall know the true nature of the deities, as it really is; and, whether engaged in religious rites, or abstaining from their performance, your understanding, through my favour, shall be perfect, and exempt from). doubts. Then my grandsire Vaśisht́ha added; Whatever has been said to thee by Pulastya, shall assuredly come to pass.