In any assembly where there are discourses about saints and devotees, O King Yudhiṣṭhira, even the enemies of the demons, namely the demigods, what to speak of you, would cite Prahlāda Mahārāja as an example of a great devotee.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यं साधुगाथासदसि रिपवोऽपि सुरा नृप । प्रतिमानं प्रकुर्वन्ति किमुतान्ये भवादृशाः
yaṃ sādhugāthāsadasi ripavo'pi surā nṛpa | pratimānaṃ prakurvanti kimutānye bhavādṛśāḥ
SB 7.4.35