One verse

Srimad Bhagavatam 9.7.15

9.7.15

इति पुत्रानुरागेण स्‍नेहयन्त्रितचेतसा । कालं वञ्चयता तं तमुक्तो देवस्तमैक्षत ॥ १५ ॥

iti putranuragena sneha-yantrita-cetasa kalam vancayata tam tam ukto devas tam aiksata

iti
in this way
putra-anuragena
because of affection for the son
sneha-yantrita-cetasa
his mind being controlled by such affection
kalam
time
vancayata
cheating
tam
unto him
tam
that
uktah
said
devah
the demigod Varuna
tam
unto him, Hariscandra
aiksata
waited for the fulfillment of his promise.

Hariscandra was certainly very much attached to his son. Because of this affection, he asked the demigod Varuna to wait. Thus Varuna waited and waited for the time to come.