Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 25

Sanskrit:

मन्वन्तरेषु मनवस्तद्वंश्या ऋषय: सुरा: ।भवन्ति चैव युगपत्सुरेशाश्चानु ये च तान् ॥ २५ ॥

ITRANS:

manvantareṣu manavastad-vaṁśyā ṛṣayaḥ surāḥbhavanti caiva yugapatsureśāś cānu ye ca tān

Translation:

After the dissolution of each and every Manu, the next Manu comes in order, along with his descendants, who rule over the different planets; but the seven famous sages, and demigods like Indra and their followers, such as the Gandharvas, all appear simultaneously with Manu.

Purport:

There are fourteen Manus in one day of Brahmā, and each of them has different descendants.