Rasarnavasudhakara 3.243

3.243

śama-pradhāneṣu tapodhaneṣu
gūḍhaṃ hi dāhātmakam asti tejaḥ |
sparśānukūlā iva sūrya-kāntās
tad anya-tejo' bhibhavād vamanti ||

"For in ascetics whose principal virtue is tranquility, / there resides a hidden, scorching fiery energy; / like sun-stones pleasant to the touch, / they vomit it forth when overcome by another's fiery brilliance."

3.243.p1

[a.śa. 2.7]

3.243.p2

ity atra tapodhaneṣu gūḍha-dāhātmaka-tejaḥ-sadbhāve sādhye tat-sādhakasya anya-tejas tiraskāra-janita-tejaḥ-samudgāra-rūpasya hetoḥ sūrya-kānteṣu darśitatvād dṛṣṭāntaḥ |

Here, when the presence of a hidden scorching energy in ascetics is what is to be proved, the reason which establishes it—consisting in the emitting of fiery brilliance produced by humiliation from another's brilliance—is shown in sun-stones; therefore it is an exemplar (dṛṣṭānta).