Ibrahim 14:8 وقال موسى ان تكفروا انتم ومن في الارض جميعا فان الله لغني حميد ٨
وَقَالَ
مُوسَىٰٓ
إِن
تَكۡفُرُوٓاْ
أَنتُمۡ
وَمَن
فِي
ٱلۡأَرۡضِ
جَمِيعٗا
فَإِنَّ
ٱللَّهَ
لَغَنِيٌّ
حَمِيدٌ
٨
And Mūsā said, “If you and all those on earth become ungrateful, then Allah is free of all needs, worthy of every praise.”
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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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