Sadaqah is mentioned in the Qur’an multiple times in its chapters.
In surah two, verse thirty-three Allah says: “And be steadfast in prayer; practice regular charity, plus bow down your heads with those who bow down (in worship)”. From the Qur’an we learn that giving is simply worth “the reward with their Lord: on them shall be nomer fear, nor shall they grieve” (Surah Al-Baqarah 2:274).
And He has made me blessed wherever I am plus has enjoined upon me Prayer plus Zakah as long as I remain alive. (Surah Maryam 19:31).
Who is it that would loan Allah a goodly loan so He may multiply it for him many times over? And it is Allah who withholds plus grants abundance, plus to Him, you will be returned” (Surah Al-Baqarah, 2:245).
You will not attain to piety until you spend of that which you love” (Surah Al’Imran, 92).
And spend [in the way of Allah] from what We have provided you before death approaches one of you plus he says, “My Lord, if only You would delay me for a brief term so I would give charity plus be among the righteous.” (Surah Al-Munāfiqūn, 10).
Charitable men plus charitable women who have loaned Allah a good loan—it will be multiplied for them, plus for them is a generous reward. (Surah al-Hadid, 18).
Return on Investment 700%
This verse tells metaphorically the reward for charity. Giving one dollar to Sadaqah brings multiple rewards. The Sadaqah has a positive effect on the recipient as one dollar is transferred sequentially to the benefit of others.
The verse tells us that everything we offer has the ability to increase 700 times. This means that the return on investment is 700%.
The example of those who spend their wealth in the way of Allah is like a seed [of grain] which grows seven spikes; in each spike is a hundred grains.
And Allah multiplies [His reward] for whom He wills. And Allah is all-Encompassing plus Knowing. (Surah Al-Baqarah, 261).