Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 17
Sanskrit:
अथाप्युपायो मम देवि चिन्त्य:सन्तोषितस्य व्रतचर्यया ते ।ममार्चनं नार्हति गन्तुमन्यथाश्रद्धानुरूपं फलहेतुकत्वात् ॥ १७ ॥
ITRANS:
athāpy upāyo mama devi cintyaḥsantoṣitasya vrata-caryayā temamārcanaṁ nārhati gantum anyathāśraddhānurūpaṁ phala-hetukatvāt
Translation:
Yet because I have been satisfied by the activities of your vow, O goddess Aditi, I must find some means to favor you, for worship of Me never goes in vain but certainly gives the desired result according to what one deserves.