Surah Al-Anbiya, ayah 47

وَنَضَعُ ٱلۡمَوَٰزِينَ ٱلۡقِسۡطَ لِيَوۡمِ ٱلۡقِيَٰمَةِ فَلَا تُظۡلَمُ نَفۡسٞ شَيۡـٔٗاۖ وَإِن كَانَ مِثۡقَالَ حَبَّةٖ مِّنۡ خَرۡدَلٍ أَتَيۡنَا بِهَاۗ وَكَفَىٰ بِنَا حَٰسِبِينَ ٤٧

Wanada'ul-mawāzīnal-qista liyawmil-qiyāmati falā tuzlamu nafsun shay'an wa in kāna mithqāla habbatim min khardalin ataynā bihā wakafā binā hāsibīn

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,⁸⁸⁷ We will bring it forth. And sufficient are We as accountant.