Canto 1 - Boyhood
Bāla-kāṇḍa
Chapter 42: Bhagīratha’s Austerities for Gaṅgā’s Descent
Text 1.42.3

तस्मिन्राज्यं समावेश्य दिलीपे रघुनन्दन।
हिमवच्छिखरे पुण्ये तपस्तेपे सुदारुणम्॥

tasmin rājyaṁ samāveśya dilīpe raghu-nandana
himavac-chikhare
puṇye tapas tepe sudāruṇam

tasmin rājyam samāveśya = after entrusting his kingdom; dilīpe = over to Dilīpa; raghu-nandana = O beloved child of Raghu; himavat-śikhare puṇye = at a pious mountain peak in the Himalayas; tapaḥ tepe sudāruṇam = he executed very terrible austerities [to bring about Gaṅgā’s descent to earth].

O beloved child of Raghu, after entrusting his kingdom over to Dilīpa, he executed very terrible austerities at a pious mountain peak in the Himalayas to bring about Gaṅgā’s descent to earth.