Srimad Bhagavatam — Navama Skandha, Shloka 32
The Yadu–Vṛṣṇi–Andhaka Genealogies and the Purpose of Kṛṣṇa’s Advent
साप दुर्वाससो विद्यां देवहूतीं प्रतोषितात् । तस्या वीर्यपरीक्षार्थमाजुहाव रविं शुचि: ॥ ३२ ॥
sāpa durvāsaso vidyāṁ deva-hūtīṁ pratoṣitāt tasyā vīrya-parīkṣārtham ājuhāva raviṁ śuciḥ
普丽塔（Pṛthā）以恭敬侍奉令大圣者杜尔瓦萨（Durvāsā）欢喜，因此得授名为“德瓦胡蒂”（Devahūtī）的秘法，能随意召请任何天神。为试验此法之威力，虔净的昆蒂当即召唤了太阳神。
FAQs
This verse shows that a mantra bestowed by a pleased sage carries real potency (vīrya), and its effects manifest when properly invoked.
She invoked Surya specifically to test the efficacy of the mantra she had received, demonstrating the mantra’s immediate and tangible power in the narrative.
It teaches reverence for sacred knowledge and the need for responsibility and discernment before “testing” powerful tools—spiritual or otherwise—since results can be consequential.