Bhagavad Gita 7.22

स तया श्रद्धया युक्तस्तस्याराधनमीहते।लभते च ततः कामान्मयैव विहितान् हि तान् ॥७.२२॥

sa tayā śraddhayā yuktastasyārādhanamīhatelabhate ca tataḥ kāmānmayaiva vihitān hi tān

Endowed with that faith, he engages in the worship of that form and obtains his desired outcome, which is ordained by Me alone.

गीता