One verse

Srimad Bhagavatam 9.12.16

9.12.16

इक्ष्वाकूणामयं वंश: सुमित्रान्तो भविष्यति । यतस्तं प्राप्य राजानं संस्थां प्राप्स्यति वै कलौ ॥ १६ ॥

iksvakunam ayam vamsah sumitranto bhavisyati yatas tam prapya rajanam samstham prapsyati vai kalau

iksvakunam
of the dynasty of King Iksvaku
ayam
this (what has been described)
vamsah
descendants
sumitra-antah
Sumitra being the last king of this dynasty
bhavisyati
will appear in the future, while the Kali-yuga still continues
yatah
because
tam
him, Maharaja Sumitra
prapya
getting
rajanam
as a king in that dynasty
samstham
culmination
prapsyati
gets
vai
indeed
kalau
at the end of Kali-yuga

The last king in the dynasty of Iksvaku will be Sumitra; after Sumitra there will be no more sons in the dynasty of the sun-god, and thus the dynasty will end.