At-Tawbah 9:75

Waminhum man AAahada Allahala-in atana min fadlihi lanassaddaqannawalanakoonanna mina assaliheen

And among them are those who made a covenant with Allāh, [saying], "If He should give us from His bounty, we will surely spend in charity, and we will surely be among the righteous."

And among them there are those who made a pledge with Allah: “If He gives us (wealth) out of His grace, then, surely we shall give alms and shall be among the righteous.”