وَأَصْبَحَ فُؤَادُ أُمِّ مُوسَى فَارِغًا إِن كَادَتْ لَتُبْدِي بِهِ لَوْلَا أَن رَّبَطْنَا عَلَى قَلْبِهَا لِتَكُونَ مِنَ الْمُؤْمِنِينَ
[28:10]
And the heart of Musa's mother was free (from anxiety) she would have almost disclosed it had We not strengthened her heart so that she might be of the believers.
But there came to be a void in the heart of the mother of Moses: She was going almost to disclose his (case), had We not strengthened her heart (with faith), so that she might remain a (firm) believer.
And the heart of the mother of Moses became void, and she would have betrayed him if We had not fortified her heart, that she might be of the believers.