Al Qasas Ayah 10

وَأَصْبَحَ فُؤَادُ أُمِّ مُوسَىٰ فَـٰرِغًا‌ۖ إِن كَادَتْ لَتُبْدِى بِهِۦ لَوْلَآ أَن رَّبَطْنَا عَلَىٰ قَلْبِهَا لِتَكُونَ مِنَ ٱلْمُؤْمِنِينَ ١٠ And the heart of Moses’ mother ached so much that she almost gave away his identity, had We not reassured her heart in order for her to have faith ?in Allah’s promise?.