Ramayana
उत्पत्स्यते हि लोके ऽस्मिन्यदूनां कीर्तिवर्धनः । वासुदेव इति ख्यातो विष्णुः पुरुषविग्रहः ॥ 7-53-20 ॥
"For there shall arise in this world one who increases the glory of the Yadus, renowned as Vasudeva—Vishnu in human form."
english translation