Any literature or narration in which the Supreme Personality of Godhead, Uttamaśloka, is described and glorified is certainly great, pure, glorious, auspicious and all good.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तत्कथा सुमहत्पुण्यं धन्यं स्वस्त्ययनं शुभम् । यत्र यत्रोत्तमश्लोको भगवान् गीयते हरिः
tatkathā sumahatpuṇyaṃ dhanyaṃ svastyayanaṃ śubham | yatra yatrottamaśloko bhagavān gīyate hariḥ
SB 8.1.32