antaḥ kṛṣṇaṁ bahir gauraṁ darśitāṅgādi-vaibhavam
antaḥ kṛṣṇaṁ bahir gauraṁ darśitāṅgādi-vaibhavam |
kalau saṅkīrtanādyaiḥ smaḥ kṛṣṇa-caitanyam āśritāḥ ||
(Tattva Sandarbha: 2; cited in Śrī Caitanya-caritāmṛta: 1.3.80)
“Through saṅkīrtana and so forth in [the Age of] Kali, we have taken shelter in Kṛṣṇa Caitanya, who is internally Kṛṣṇa, externally golden, and manifest with the magnificence of his limbs and so forth [i.e., along with his sub-limbs, weapons, and associates].”