Allah S.W.T says in the Quran – Chapter 57 – Verse 7:

Believe in Allah and His Messenger (Muhammad S.A.W), and spend of that whereof He has made you trustees. And such of you as believe and spend (in Allah’s Way), theirs will be a great reward.

Quran – Chapter 2 – verse 261:

“The charity of those who expend their wealth in the Way of Allah may be likened to a grain of corn, which produces seven ears and each ear yields a hundred grains. Likewise Allah develops manifold the charity of anyone He pleases, for He is All-Embracing, All-Wise.”

Quran – Chapter 2 – Verse 274:

“Those who spend of their goods (in charity) by night and by day in secret and in public shall have their reward with their Lord: on them shall be no fear nor shall they grieve.”

Quran – Chapter 2 Verse 110:

“And perform As-Salat (Iqamat-as-Salat), and give Zakat, and whatever of good (deeds that Allah loves) you send forth for yourselves before you, you shall find it with Allah. Certainly, Allah is All-Seer of what you do.”

Hadith Qudsi – Abu Hurairah R.D narrates: The Messenger of Allah S.A.W said that Allah The Glorious and Exalted Says: “Spend (on charity), O son of Adam, and I shall spend on you.” (Sahih Al-Bukhari)

Allah’s Messenger S.A.W said: “Charity obliterates (wipes out) sins just as water extinguishes fire.” (Tirmidhi)