18:14
وَ رَبَطْ نَا عَلَىٰ قُلُوبِ هِمْ إِذْ قَامُ وا۟ فَ قَالُ وا۟ رَبُّ نَا رَبُّ ٱل سَّمَٰوَٰتِ وَ ٱلْ أَرْضِ لَن نَّدْعُوَا۟ مِن دُونِ هِۦٓ إِلَٰهًا لَّ قَدْ قُلْ نَآ إِذًا شَطَطًا
And We made firm their hearts when they stood up and said, "Our Lord is the Lord of the heavens and the earth. Never will we invoke besides Him any deity. We would have certainly spoken, then, an excessive transgression.
28:10
وَ أَصْبَحَ فُؤَادُ أُمِّ مُوسَىٰ فَٰرِغًا إِن كَادَتْ لَ تُبْدِى بِ هِۦ لَوْلَآ أَن رَّبَطْ نَا عَلَىٰ قَلْبِ هَا لِ تَكُونَ مِنَ ٱلْ مُؤْمِنِينَ
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.
8:11
إِذْ يُغَشِّي كُمُ ٱل نُّعَاسَ أَمَنَةً مِّنْ هُ وَ يُنَزِّلُ عَلَيْ كُم مِّنَ ٱل سَّمَآءِ مَآءً لِّ يُطَهِّرَ كُم بِ هِۦ وَ يُذْهِبَ عَن كُمْ رِجْزَ ٱل شَّيْطَٰنِ وَ لِ يَرْبِطَ عَلَىٰ قُلُوبِ كُمْ وَ يُثَبِّتَ بِ هِ ٱلْ أَقْدَامَ
[Remember] when He overwhelmed you with drowsiness [giving] security from Him and sent down upon you from the sky, rain by which to purify you and remove from you the evil [suggestions] of Satan and to make steadfast your hearts and plant firmly thereby your feet.