Caitanya-caritāmṛta 7.125
tathāpi acintya-śaktye haya avikārī prākṛta cintāmaṇi tāhe dṛṣṭānta ye dhari
[tathaapi achintya-shaktye haya avikaaree praakrita chintaamani taahe drishtaanta ye dhari]
Blended reading (Sanskrit + English inline)
tathāpi acintya-śaktye haya avikārī prākṛta cintāmaṇi tāhe dṛṣṭānta ye dhari
“Using the example of a touchstone, which by its energy turns iron to gold and yet remains the same, we can understand that although the Supreme Personality of Godhead transforms His innumerable energies, He remains unchanged.
My note
Source: vedabase.io