Shiva Purana
अस्य वंशेऽष्टमो भावी नन्दो नाम महायशाः ॥ प्राप्स्यते तस्य पुत्रत्वं कृष्णो नारायणस्स्वयम् ॥ ६८ ॥
In his race, in the eighth generation, there will be a famous cowherd Nanda. Viṣṇu himself will be born as his son, Kṛṣna.
english translation
asya vaMze'STamo bhAvI nando nAma mahAyazAH ॥ prApsyate tasya putratvaM kRSNo nArAyaNassvayam ॥ 68 ॥
hk transliteration by Sanscript