Al Quran : If an action is equal to a grain of mustard seed

Bismillahirrahmanirraheem

إِنَّهَا إِن تَكُ مِثْقَالَ حَبَّةٍ مِّنْ خَرْدَلٍ فَتَكُن فِي صَخْرَةٍ أَوْ فِي السَّمَاوَاتِ أَوْ فِي الْأَرْضِ يَأْتِ بِهَا اللَّهُ ۚ إِنَّ اللَّهَ لَطِيفٌ خَبِيرٌ

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Al Quran : If an action is equal to a grain of mustard seed, then it is inside a rock, or it is in the sky, or it is in the earth, then Allah will bring it before it Indeed, Allah is Great Fine Bean (and) Informed

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Surah Luqman 31:16