Skandapurana 6.3.84.21

6.3.84.21

śrīrāma uvāca -
kurvato devakāryaṃ te mama kāryaṃ ca kurvataḥ .
tato'hamapi pāpīyāṃstapastapsyāmyasaṃśayam .. 84.21 ..

Glorious Rāma said: / "While you were doing the work of the gods and doing my work, / [it was on my account]; therefore I too, being sinful, will perform austerity without doubt."