Amatul Rahmân Omer:
And that which you lay out as interest and usuary with a view to increase the wealth of the people does not help increase it in the sight of Allâh. But that which you present as Zakât (purifying dues) with a view to seek (thereby) the pleasure of Allâh, it is they (- the regular payers of Zakât) then who will increase (their wealth) many times over.
