Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 12
Sanskrit:
य एतत् संस्मरेत् प्रात: सायं च सुसमाहित: ।कविर्भवति मन्त्रज्ञो गतिं चैव तथात्मन: ॥ १२ ॥
ITRANS:
ya etat saṁsmaret prātaḥsāyaṁ ca susamāhitaḥkavir bhavati mantra-jñogatiṁ caiva tathātmanaḥ
Translation:
If one hears and chants or remembers this narration in the morning and evening with great attention, he certainly becomes learned, experienced in understanding the Vedic hymns, and expert in self-realization.