9. Tevbe Sûresi - 75. ayet

Onların bazıları da: “Şâyet O (Allah), lütuf ve kereminden bize verirse, mutlaka sadaka (zekât) vereceğiz ve muhakkak iyilerden olacağız.” diye Allah’a kesin söz verdiler.

And there are some who had made a vow to Allah: “If He gives us from His bounty, we will surely spend in charity and be of the righteous.”