وَأَصۡبَحَ فُؤَادُ أُمِّ مُوسَىٰ فَٰرِغًاۖ إِن كَادَتۡ لَتُبۡدِي بِهِۦ لَوۡلَآ أَن رَّبَطۡنَا عَلَىٰ قَلۡبِهَا لِتَكُونَ مِنَ ٱلۡمُؤۡمِنِينَ ١٠
And the heart of Moses' mother became empty [of all else]. She was about to disclose [the matter concerning] him had We not bound fast her heart that she would be of the believers.
Translation: Saheeh International (English)
Each word's meaning and sound
The heart of Moses’s mother forgot every worldly matter and became preoccupied with the matter of Moses, barely able to bear patience so much so that she almost expressed that it was her son, due to the immense attachment she had with him. It was only because of My strengthening her heart and granting her the ability to bear patience, that she became one of those believers who fully thrust their Lord and are patient upon what He decrees for them.
Al-Mukhtasar in interpreting the Noble Quran