Śrīmad-Bhāgavatam · Text 9.4.29
Who is speaking and story frame
आरिराधयिषु: कृष्णं महिष्या तुल्यशीलया ।
युक्त: सांवत्सरं वीरो दधार द्वादशीव्रतम् ॥ २९ ॥
ārirādhayiṣuḥ kṛṣṇaṁ
mahiṣyā tulya-śīlayā
yuktaḥ sāṁvatsaraṁ vīro
dadhāra dvādaśī-vratam
To worship Lord Kṛṣṇa, Mahārāja Ambarīṣa, along with his queen, who was equally qualified, observed the vow of Ekādaśī and Dvādaśī for one year.
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