Bhagavad-gītā 17.28
BG 17.28
Open the full passageअश्रद्धया हुतं दत्तं तपस्तप्तं कृतं च यत् । असदित्युच्यते पार्थ न च तत्प्रेत्य नो इह ॥२८॥
Sanskrit
aśraddhayā hutaṁ dattaṁ tapas taptaṁ kṛtaṁ ca yat asad ity ucyate pārtha na ca tat pretya no iha
Translation
Anything done as sacrifice, charity or penance without faith in the Supreme, O son of Pṛthā, is impermanent. It is called asat and is useless both in this life and the next.