Skandapurana 5.91.10

5.91.10

śrīmatāṃ ca tathānyeṣāmasmadīyaprasādataḥ ..
tvaṃ ca maṃḍūka yattena vijihvo vahninā kṛtaḥ ..
tadbhaviṣyati te śabdo vijihvasyāpi dīrghagaḥ .. 6.91.10 ..

and to other wealthy persons, by our grace. / And you, O frog, although you have been made tongueless by Fire, / your sound will travel far, even without a tongue.” 10