yat-pāda-sevābhirucis tapasvinām
aśeṣa-janmopacitaṁ malaṁ dhiyaḥ
sadyaḥ kṣiṇoty anv-aham edhatī satī
yathā padāṅguṣṭha-viniḥsṛtā sarit
yat-pāda-sevā-abhiruciḥ - the taste for serving the lotus feet of Lord Kṛṣṇa; tapasvinām - of persons undergoing severe penances; aśeṣa - unlimited; janma-upacitam - contracted from life after life; malam - dirt; dhiyaḥ - of the intelligence; sadyaḥ - immediately; kṣiṇoti - vanquishes; anu-aham - every day; edhatī - increasing; satī - being in the mode of goodness; yathā - as; pada-aṅguṣṭha-viniḥsṛtā - emanating from the toe of the Lord; sarit - the river Ganges.
This is a quotation from Śrīmad-Bhāgavatam (4.21.31).