2:283
وَ إِن كُن تُمْ عَلَىٰ سَفَرٍ وَ لَمْ تَجِدُ وا۟ كَاتِبًا فَ رِهَٰنٌ مَّقْبُوضَةٌ فَ إِنْ أَمِنَ بَعْضُ كُم بَعْضًا فَ لْ يُؤَدِّ ٱلَّذِى ٱؤْتُمِنَ أَمَٰنَتَ هُۥ وَ لْ يَتَّقِ ٱللَّهَ رَبَّ هُۥ وَ لَا تَكْتُمُ وا۟ ٱل شَّهَٰدَةَ وَ مَن يَكْتُمْ هَا فَ إِنَّ هُۥٓ ءَاثِمٌ قَلْبُ هُۥ وَ ٱللَّهُ بِ مَا تَعْمَلُ ونَ عَلِيمٌ
And if you are on a journey and cannot find a scribe, then a security deposit [should be] taken. And if one of you entrusts another, then let him who is entrusted discharge his trust [faithfully] and let him fear Allah, his Lord. And do not conceal testimony, for whoever conceals it - his heart is indeed sinful, and Allah is Knowing of what you do.
3:75
وَ مِنْ أَهْلِ ٱلْ كِتَٰبِ مَنْ إِن تَأْمَنْ هُ بِ قِنطَارٍ يُؤَدِّ هِۦٓ إِلَيْ كَ وَ مِنْ هُم مَّنْ إِن تَأْمَنْ هُ بِ دِينَارٍ لَّا يُؤَدِّ هِۦٓ إِلَيْ كَ إِلَّا مَا دُمْ تَ عَلَيْ هِ قَآئِمًا ذَٰلِكَ بِ أَنَّ هُمْ قَالُ وا۟ لَيْسَ عَلَيْ نَا فِى ٱلْ أُمِّيِّۦنَ سَبِيلٌ وَ يَقُولُ ونَ عَلَى ٱللَّهِ ٱلْ كَذِبَ وَ هُمْ يَعْلَمُ ونَ
And among the People of the Scripture is he who, if you entrust him with a great amount [of wealth], he will return it to you. And among them is he who, if you entrust him with a [single] silver coin, he will not return it to you unless you are constantly standing over him [demanding it]. That is because they say, "There is no blame upon us concerning the unlearned." And they speak untruth about Allah while they know [it].
44:18
أَنْ أَدُّ وٓا۟ إِلَىَّ عِبَادَ ٱللَّهِ إِنِّ ى لَ كُمْ رَسُولٌ أَمِينٌ
[Saying], "Render to me the servants of Allah. Indeed, I am to you a trustworthy messenger,"
4:58
إِنَّ ٱللَّهَ يَأْمُرُ كُمْ أَن تُؤَدُّ وا۟ ٱلْ أَمَٰنَٰتِ إِلَىٰٓ أَهْلِ هَا وَ إِذَا حَكَمْ تُم بَيْنَ ٱل نَّاسِ أَن تَحْكُمُ وا۟ بِ ٱلْ عَدْلِ إِنَّ ٱللَّهَ نِعِ مَّا يَعِظُ كُم بِ هِۦٓ إِنَّ ٱللَّهَ كَانَ سَمِيعًۢا بَصِيرًا
Indeed, Allah commands you to render trusts to whom they are due and when you judge between people to judge with justice. Excellent is that which Allah instructs you. Indeed, Allah is ever Hearing and Seeing.