CC Antya 16.60
- bhakta-pada-dhūli āra bhakta-pada-jala
- bhakta-bhukta-avaśeṣa,—tina mahā-bala
bhakta-pada-dhūli—the dust of the lotus feet of a devotee; āra—and; bhakta-pada-jala—the water that washed the feet of a devotee; bhakta-bhukta-avaśeṣa—and the remnants of food eaten by a devotee; tina—three; mahā-bala—very powerful.
The dust of the feet of a devotee, the water that has washed the feet of a devotee, and the remnants of food left by a devotee are three very powerful substances.