وَإِذ أَنجَيناكُم مِن آلِ فِرعَونَ يَسومونَكُم سوءَ العَذابِ ۖ يُقَتِّلونَ أَبناءَكُم وَيَستَحيونَ نِساءَكُم ۚ وَفي ذٰلِكُم بَلاءٌ مِن رَبِّكُم عَظيمٌ

And remember when We rescued you from Pharaoh’s people, who subjected you to the harshest torment, killing your sons and sparing your women. That was a severe trial from your Lord.