One verse

Srimad Bhagavatam 9.2.2

9.2.2

ततोऽयजन्मनुर्देवमपत्यार्थं हरिं प्रभुम् । इक्ष्वाकुपूर्वजान् पुत्रान्लेभे स्वसद‍ृशान् दश ॥ २ ॥

tato ’yajan manur devam apatyartham harim prabhum iksvaku-purvajan putran lebhe sva-sadrsan dasa

tatah
thereafter
ayajat
worshiped
manuh
Vaivasvata Manu
devam
unto the Supreme Personality of Godhead
apatya-artham
with a desire to get sons
harim
unto Hari, the Supreme Personality of Godhead
prabhum
the Lord
iksvaku-purva-jan
of whom the eldest was named Iksvaku
putran
sons
lebhe
got
sva-sadrsan
exactly like himself
dasa
ten.

Then, because of this desire for sons, the Manu known as Sraddhadeva worshiped the Supreme Lord, the Personality of Godhead, the Lord of the demigods. Thus he got ten sons exactly like himself. Among them all, Iksvaku was the eldest.