Gāndharva-lakṣaṇa
Traits/Classification of the Gandharvas) and Royal-Genealogical Continuities (Vamśa-prasaṅga
उत्तङ्क उवाच भवता रक्षणं कार्यं तत्तावत्कर्त्तुमर्हति / निरुद्विग्नस्तपस्छर्तुं न हि शक्रो ऽपि पार्थिव
uttaṅka uvāca bhavatā rakṣaṇaṃ kāryaṃ tattāvatkarttumarhati / nirudvignastapaschartuṃ na hi śakro 'pi pārthiva
Uttaṅka said: O king, you must undertake the duty of protection for the time being; you are fit to do so. To practice tapas in perfect peace is not possible even for Śakra (Indra), O ruler of the earth.