Al-Anbya 21:47

WanadaAAu almawazeena alqistaliyawmi alqiyamati fala tuthlamunafsun shay-an wa-in kana mithqala habbatinmin khardalin atayna biha wakafa binahasibeen

And We place the scales of justice for the Day of Resurrection, so no soul will be treated unjustly at all. And if there is [even] the weight of a mustard seed, We will bring it forth. And sufficient are We as accountant.

We shall place scales to do justice on the Day of Judgment. So no one shall be wronged in the least. Even if it (a deed) is to the measure of a mustard seed, We will bring it forth, and We are enough to take account.