Ibrahim 14:7 واذ تاذن ربكم لين شكرتم لازيدنكم ولين كفرتم ان عذابي لشديد ٧
وَإِذۡ
تَأَذَّنَ
رَبُّكُمۡ
لَئِن
شَكَرۡتُمۡ
لَأَزِيدَنَّكُمۡۖ
وَلَئِن
كَفَرۡتُمۡ
إِنَّ
عَذَابِي
لَشَدِيدٞ
٧
Remember that He promised, “If you are thankful, I will give you more, but if you are thankless, My punishment is terrible indeed.” ’
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Ibn Kathir (Abridged)
Allah states that Musa reminded his people about Allah's annals anddays and of Allah's favors and bounties that He bestowed on them,when He saved them from Fir` awn and his people and the tormentand disgrace they used to exert on them.
They used to slaughter whomever they could find among their sons
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