The three deities told Atri Muni: Dear brāhmaṇa, you are perfect in your determination, and therefore as you have decided, so it will happen; it will not happen otherwise. We are all the same person upon whom you were meditating, and therefore we have all come to you.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
देवा ऊचुः । यथा कृतस्ते सङ्कल्पो भाव्यं तेनैव नान्यथा । सत्सङ्कल्पस्य ते ब्रह्मन् यद्वै ध्यायति ते वयम्
devā ūcuḥ | yathā kṛtaste saṅkalpo bhāvyaṃ tenaiva nānyathā | satsaṅkalpasya te brahman yadvai dhyāyati te vayam
SB 4.1.30