Mahabharata 12.154.8

नादान्तस्य क्रियासिद्धिर्यथावदुपलभ्यतेदमो दानं तथा यज्ञानधीतं चातिवर्तते

nādāntasya kriyāsiddhiryathāvadupalabhyatedamo dānaṃ tathā yajñānadhītaṃ cātivartate

Our plain-language meaning of this verse is waiting for scholar review.