King Indra became fearful, thinking that Nara-Nārāyaṇa Ṛṣi would become very powerful by His severe penances and seize Indra’s heavenly kingdom. Thus Indra, not knowing the transcendental glories of the incarnation of the Lord, sent Cupid and his associates to the Lord’s residence in Badarikāśrama. As the charming breezes of spring created a most sensuous atmosphere, Cupid himself attacked the Lord with arrows in the form of the irresistible glances of beautiful women.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
इन्द्रो विशङ्क्य मम धाम जिघृक्षतीति कामं न्ययुङ्क्त सगणं स बदर्युपाख्यम् । गत्वाप्सरोगणवसन्तसुमन्दवातैः स्त्रीप्रेक्षणेषुभिरविध्यदतन्महिज्ञः
indro viśaṅkya mama dhāma jighṛkṣatīti kāmaṃ nyayuṅkta sagaṇaṃ sa badaryupākhyam | gatvāpsarogaṇavasantasumandavātaiḥ strīprekṣaṇeṣubhiravidhyadatanmahijñaḥ
SB 11.4.7