Quran 2:49 Al-Baqarah, ayah 49 of 286

وَإِذْ نَجَّيْنَـٰكُم مِّنْ ءَالِ فِرْعَوْنَ يَسُومُونَكُمْ سُوٓءَ ٱلْعَذَابِ يُذَبِّحُونَ أَبْنَآءَكُمْ وَيَسْتَحْيُونَ نِسَآءَكُمْ ۚ وَفِى ذَٰلِكُم بَلَآءٌ مِّن رَّبِّكُمْ عَظِيمٌ ۝٤٩

2:49 And (remember) when We did deliver you from Pharaoh's folk, who were afflicting you with dreadful torment, slaying your sons and sparing your women: that was a tremendous trial from your Lord.