Quran 7:141 Al-A'raf, ayah 141 of 206

وَإِذْ أَنجَيْنَـٰكُم مِّنْ ءَالِ فِرْعَوْنَ يَسُومُونَكُمْ سُوٓءَ ٱلْعَذَابِ ۖ يُقَتِّلُونَ أَبْنَآءَكُمْ وَيَسْتَحْيُونَ نِسَآءَكُمْ ۚ وَفِى ذَٰلِكُم بَلَآءٌ مِّن رَّبِّكُمْ عَظِيمٌ ۝١٤١

7:141 And (remember) when We did deliver you from Pharaoh's folk who were afflicting you with dreadful torment, slaughtering your sons and sparing your women. That was a tremendous trial from your Lord.