Śrīmad-Bhāgavatam · Text 9.4.68
Who is speaking and story frame
साधवो हृदयं मह्यं साधूनां हृदयं त्वहम् ।
मदन्यत् ते न जानन्ति नाहं तेभ्यो मनागपि ॥ ६८ ॥
sādhavo hṛdayaṁ mahyaṁ
sādhūnāṁ hṛdayaṁ tv aham
mad-anyat te na jānanti
nāhaṁ tebhyo manāg api
The pure devotee is always within the core of My heart, and I am always in the heart of the pure devotee. My devotees do not know anything else but Me, and I do not know anyone else but them.
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