One verse

Srimad Bhagavatam 6.6.16

6.6.16

विभावसोरसूतोषा व्युष्टं रोचिषमातपम् । पञ्चयामोऽथ भूतानि येन जाग्रति कर्मसु ॥ १६ ॥

vibhavasor asutosa vyustam rocisam atapam pancayamo ’tha bhutani yena jagrati karmasu

vibhavasoh
of Vibhavasu
asuta
gave birth to
usa
named Usa
vyustam
Vyusta
rocisam
Rocisa
atapam
Atapa
pancayamah
Pancayama
atha
thereafter
bhutani
the living entities
yena
by whom
jagrati
are awakened
karmasu
in material activities.

Usa, the wife of Vibhavasu, gave birth to three sons—Vyusta, Rocisa and Atapa. From Atapa came Pancayama, the span of day, who awakens all living entities to material activities.