Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 16
Sanskrit:
इक्ष्वाकूणामयं वंश: सुमित्रान्तो भविष्यति ।यतस्तं प्राप्य राजानं संस्थां प्राप्स्यति वै कलौ ॥ १६ ॥
ITRANS:
ikṣvākūṇām ayaṁ vaṁśaḥsumitrānto bhaviṣyatiyatas taṁ prāpya rājānaṁsaṁsthāṁ prāpsyati vai kalau
Translation:
The last king in the dynasty of Ikṣvāku will be Sumitra; after Sumitra there will be no more sons in the dynasty of the sun-god, and thus the dynasty will end.