21:47
وَنَضَعُ الْمَوَازِينَ الْقِسْطَ لِيَوْمِ الْقِيَامَةِ فَلاَ تُظْلَمُ نَفْس ٌ شَيْئا ً وَإِنْ كَانَ مِثْقَالَ حَبَّة ٍ مِنْ خَرْدَلٍ أَتَيْنَا بِهَا وَكَفَى بِنَا حَاسِبِينَ
Wa NaĐa`u Al-Mawāzīna Al-Qisţa Liyawmi Al-Qiyāmati Falā Tužlamu Nafsun Shay'āan Wa 'In Kāna Mithqāla Ĥabbatin Min Khardalin 'Ataynā Bihā Wa Kafá Binā Ĥāsibīna 

And We place the balances of justice for the Day of Resurrection, so that no soul will be wronged in the least. Even if it was the weight of a mustard seed, We will bring it. And We are enough as a Reckoner.

31:16
يَابُنَيَّ إِنَّهَا إِنْ تَكُنْ مِثْقَالَ حَبَّة ٍ مِنْ خَرْدَل ٍ فَتَكُنْ فِي صَخْرَةٍ أَوْ فِي السَّمَاوَاتِ أَوْ فِي الأَرْضِ يَأْتِ بِهَا اللَّهُ إِنَّ اللَّهَ لَطِيفٌ خَبِير ٌYā Bunayya 'Innahā 'In Takun Mithqāla Ĥabbatin Min Khardalin Fatakun Fī Şakhratin 'Aw Fī As-Samāwāti 'Aw Fī Al-'ArĐi Ya'ti Bihā Allāhu 'Inna Allāha Laţīfun Khabīrun 

O my son, if it be anything, even the weight of a mustard seed, be it deep inside a rock, or be it in the heavens or the earth, God will bring it. God is Sublime, Expert.