remember that when moses said to his people o my people you have wronged yourselves grievously by taking the calf for worship. therefore turn to your creator. in penitence and slay the guilty ones among you. this is best for you in the sight of your creator. at that time your creator accepted your repentance because he is relenting and merciful.
وإذ قال موسى لقومه يا قوم إنكم ظلمتم أنفسكم باتخاذكم العجل فتوبوا إلى بارئكم فاقتلوا أنفسكم ذلكم خير لكم عند بارئكم فتاب عليكم إنه هو التواب الرحيم