Lord Śiva said: The end of the millennium is the time for Your anger. Now that this insignificant demon Hiraṇyakaśipu has been killed, O my Lord, who are naturally affectionate to Your devotee, kindly protect his son Prahlāda Mahārāja, who is standing nearby as Your fully surrendered devotee.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
श्रीरुद्र उवाच । कोपकालो युगान्तस्ते हतोऽयमसुरोऽल्पकः । तत्सुतं पाह्युपसृतं भक्तं ते भक्तवत्सल
śrīrudra uvāca | kopakālo yugāntaste hato'yamasuro'lpakaḥ | tatsutaṃ pāhyupasṛtaṃ bhaktaṃ te bhaktavatsala
SB 7.8.41