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SB 12.12.65
vipro ’dhityapnuyat prajñam
rajanyodadhi-mekhalam
vaisyo nidhi-patitvam ca
sudrah sudhyeta patakat
Translation:
A brahmana who studies the Srimad-Bhagavatam achieves firm intelligence in devotional service, a king who studies it gains sovereignty over the earth, a vaisya acquires great treasure and a sudra is freed from sinful reactions.