The root ر ش د (r-sh-d) in the Quran

وَإِذَا سَأَلَكَ عِبَادِى عَنِّى فَإِنِّى قَرِيبٌ أُجِيبُ دَعْوَةَ ٱلدَّاعِ إِذَا دَعَانِ فَلْيَسْتَجِيبُوا۟ لِى وَلْيُؤْمِنُوا۟ بِى لَعَلَّهُمْ يَرْشُدُونَ ۝١٨٦

And when My servants ask you, [O Muḥammad], concerning Me - indeed I am near. I respond to the invocation of the supplicant when he calls upon Me. So let them respond to Me [by obedience] and believe in Me that they may be [rightly] guided.

لَآ إِكْرَاهَ فِى ٱلدِّينِ قَد تَّبَيَّنَ ٱلرُّشْدُ مِنَ ٱلْغَىِّ فَمَن يَكْفُرْ بِٱلطَّٰغُوتِ وَيُؤْمِنۢ بِٱللَّهِ فَقَدِ ٱسْتَمْسَكَ بِٱلْعُرْوَةِ ٱلْوُثْقَىٰ لَا ٱنفِصَامَ لَهَا وَٱللَّهُ سَمِيعٌ عَلِيمٌ ۝٢٥٦

There shall be no compulsion in [acceptance of] the religion. The right course has become distinct from the wrong. So whoever disbelieves in ṭāghūt and believes in Allāh has grasped the most trustworthy handhold with no break in it. And Allāh is Hearing and Knowing.

وَٱبْتَلُوا۟ ٱلْيَتَٰمَىٰ حَتَّىٰٓ إِذَا بَلَغُوا۟ ٱلنِّكَاحَ فَإِنْ ءَانَسْتُم مِّنْهُمْ رُشْدًا فَٱدْفَعُوٓا۟ إِلَيْهِمْ أَمْوَٰلَهُمْ وَلَا تَأْكُلُوهَآ إِسْرَافًا وَبِدَارًا أَن يَكْبَرُوا۟ وَمَن كَانَ غَنِيًّا فَلْيَسْتَعْفِفْ وَمَن كَانَ فَقِيرًا فَلْيَأْكُلْ بِٱلْمَعْرُوفِ فَإِذَا دَفَعْتُمْ إِلَيْهِمْ أَمْوَٰلَهُمْ فَأَشْهِدُوا۟ عَلَيْهِمْ وَكَفَىٰ بِٱللَّهِ حَسِيبًا ۝٦

And test the orphans [in their abilities] until they reach marriageable age. Then if you perceive in them sound judgement, release their property to them. And do not consume it excessively and quickly, [anticipating] that they will grow up. And whoever, [when acting as guardian], is self-sufficient should refrain [from taking a fee]; and whoever is poor - let him take according to what is acceptable. Then when you release their property to them, bring witnesses upon them. And sufficient is Allāh as Accountant.

سَأَصْرِفُ عَنْ ءَايَٰتِىَ ٱلَّذِينَ يَتَكَبَّرُونَ فِى ٱلْأَرْضِ بِغَيْرِ ٱلْحَقِّ وَإِن يَرَوْا۟ كُلَّ ءَايَةٍ لَّا يُؤْمِنُوا۟ بِهَا وَإِن يَرَوْا۟ سَبِيلَ ٱلرُّشْدِ لَا يَتَّخِذُوهُ سَبِيلًا وَإِن يَرَوْا۟ سَبِيلَ ٱلْغَىِّ يَتَّخِذُوهُ سَبِيلًا ذَٰلِكَ بِأَنَّهُمْ كَذَّبُوا۟ بِـَٔايَٰتِنَا وَكَانُوا۟ عَنْهَا غَٰفِلِينَ ۝١٤٦

I will turn away from My signs those who are arrogant upon the earth without right; and if they should see every sign, they will not believe in it. And if they see the way of consciousness, they will not adopt it as a way; but if they see the way of error, they will adopt it as a way. That is because they have denied Our signs and they were heedless of them.

وَجَآءَهُۥ قَوْمُهُۥ يُهْرَعُونَ إِلَيْهِ وَمِن قَبْلُ كَانُوا۟ يَعْمَلُونَ ٱلسَّيِّـَٔاتِ قَالَ يَٰقَوْمِ هَٰٓؤُلَآءِ بَنَاتِى هُنَّ أَطْهَرُ لَكُمْ فَٱتَّقُوا۟ ٱللَّهَ وَلَا تُخْزُونِ فِى ضَيْفِىٓ أَلَيْسَ مِنكُمْ رَجُلٌ رَّشِيدٌ ۝٧٨

And his people came hastening to him, and before [this] they had been doing evil deeds. He said, "O my people, these are my daughters; they are purer for you. So fear Allāh and do not disgrace me concerning my guests. Is there not among you a man of reason?"

قَالُوا۟ يَٰشُعَيْبُ أَصَلَوٰتُكَ تَأْمُرُكَ أَن نَّتْرُكَ مَا يَعْبُدُ ءَابَآؤُنَآ أَوْ أَن نَّفْعَلَ فِىٓ أَمْوَٰلِنَا مَا نَشَٰٓؤُا۟ إِنَّكَ لَأَنتَ ٱلْحَلِيمُ ٱلرَّشِيدُ ۝٨٧

They said, "O Shuʿayb, does your prayer [i.e., religion] command you that we should leave what our fathers worship or not do with our wealth what we please? Indeed, you are the forbearing, the discerning!"

إِلَىٰ فِرْعَوْنَ وَمَلَإِي۟هِۦ فَٱتَّبَعُوٓا۟ أَمْرَ فِرْعَوْنَ وَمَآ أَمْرُ فِرْعَوْنَ بِرَشِيدٍ ۝٩٧

To Pharaoh and his establishment, but they followed the command of Pharaoh, and the command of Pharaoh was not [at all] discerning.

إِذْ أَوَى ٱلْفِتْيَةُ إِلَى ٱلْكَهْفِ فَقَالُوا۟ رَبَّنَآ ءَاتِنَا مِن لَّدُنكَ رَحْمَةً وَهَيِّئْ لَنَا مِنْ أَمْرِنَا رَشَدًا ۝١٠

[Mention] when the youths retreated to the cave and said, "Our Lord, grant us from Yourself mercy and prepare for us from our affair right guidance."

وَتَرَى ٱلشَّمْسَ إِذَا طَلَعَت تَّزَٰوَرُ عَن كَهْفِهِمْ ذَاتَ ٱلْيَمِينِ وَإِذَا غَرَبَت تَّقْرِضُهُمْ ذَاتَ ٱلشِّمَالِ وَهُمْ فِى فَجْوَةٍ مِّنْهُ ذَٰلِكَ مِنْ ءَايَٰتِ ٱللَّهِ مَن يَهْدِ ٱللَّهُ فَهُوَ ٱلْمُهْتَدِ وَمَن يُضْلِلْ فَلَن تَجِدَ لَهُۥ وَلِيًّا مُّرْشِدًا ۝١٧

And [had you been present], you would see the sun when it rose, inclining away from their cave on the right, and when it set, passing away from them on the left, while they were [lying] within an open space thereof. That was from the signs of Allāh. He whom Allāh guides is the [rightly] guided, but he whom He sends astray - never will you find for him a protecting guide.

إِلَّآ أَن يَشَآءَ ٱللَّهُ وَٱذْكُر رَّبَّكَ إِذَا نَسِيتَ وَقُلْ عَسَىٰٓ أَن يَهْدِيَنِ رَبِّى لِأَقْرَبَ مِنْ هَٰذَا رَشَدًا ۝٢٤

Except [when adding], "If Allāh wills." And remember your Lord when you forget [it] and say, "Perhaps my Lord will guide me to what is nearer than this to right conduct."

قَالَ لَهُۥ مُوسَىٰ هَلْ أَتَّبِعُكَ عَلَىٰٓ أَن تُعَلِّمَنِ مِمَّا عُلِّمْتَ رُشْدًا ۝٦٦

Moses said to him, "May I follow you on [the condition] that you teach me from what you have been taught of sound judgement?"

وَلَقَدْ ءَاتَيْنَآ إِبْرَٰهِيمَ رُشْدَهُۥ مِن قَبْلُ وَكُنَّا بِهِۦ عَٰلِمِينَ ۝٥١

And We had certainly given Abraham his sound judgement before, and We were of him well-Knowing

يَٰقَوْمِ لَكُمُ ٱلْمُلْكُ ٱلْيَوْمَ ظَٰهِرِينَ فِى ٱلْأَرْضِ فَمَن يَنصُرُنَا مِنۢ بَأْسِ ٱللَّهِ إِن جَآءَنَا قَالَ فِرْعَوْنُ مَآ أُرِيكُمْ إِلَّا مَآ أَرَىٰ وَمَآ أَهْدِيكُمْ إِلَّا سَبِيلَ ٱلرَّشَادِ ۝٢٩

O my people, sovereignty is yours today, [your being] dominant in the land. But who would protect us from the punishment of Allāh if it came to us?" Pharaoh said, "I do not show you except what I see, and I do not guide you except to the way of right conduct."

وَقَالَ ٱلَّذِىٓ ءَامَنَ يَٰقَوْمِ ٱتَّبِعُونِ أَهْدِكُمْ سَبِيلَ ٱلرَّشَادِ ۝٣٨

And he who believed said, "O my people, follow me; I will guide you to the way of right conduct.

وَٱعْلَمُوٓا۟ أَنَّ فِيكُمْ رَسُولَ ٱللَّهِ لَوْ يُطِيعُكُمْ فِى كَثِيرٍ مِّنَ ٱلْأَمْرِ لَعَنِتُّمْ وَلَٰكِنَّ ٱللَّهَ حَبَّبَ إِلَيْكُمُ ٱلْإِيمَٰنَ وَزَيَّنَهُۥ فِى قُلُوبِكُمْ وَكَرَّهَ إِلَيْكُمُ ٱلْكُفْرَ وَٱلْفُسُوقَ وَٱلْعِصْيَانَ أُو۟لَٰٓئِكَ هُمُ ٱلرَّٰشِدُونَ ۝٧

And know that among you is the Messenger of Allāh. If he were to obey you in much of the matter, you would be in difficulty, but Allāh has endeared to you the faith and has made it pleasing in your hearts and has made hateful to you disbelief, defiance and disobedience. Those are the [rightly] guided.

يَهْدِىٓ إِلَى ٱلرُّشْدِ فَـَٔامَنَّا بِهِۦ وَلَن نُّشْرِكَ بِرَبِّنَآ أَحَدًا ۝٢

It guides to the right course, and we have believed in it. And we will never associate with our Lord anyone.

وَأَنَّا لَا نَدْرِىٓ أَشَرٌّ أُرِيدَ بِمَن فِى ٱلْأَرْضِ أَمْ أَرَادَ بِهِمْ رَبُّهُمْ رَشَدًا ۝١٠

And we do not know [therefore] whether evil is intended for those on earth or whether their Lord intends for them a right course.

وَأَنَّا مِنَّا ٱلْمُسْلِمُونَ وَمِنَّا ٱلْقَٰسِطُونَ فَمَنْ أَسْلَمَ فَأُو۟لَٰٓئِكَ تَحَرَّوْا۟ رَشَدًا ۝١٤

And among us are Muslims [in submission to Allāh], and among us are the unjust. And whoever has become Muslim - those have sought out the right course.

قُلْ إِنِّى لَآ أَمْلِكُ لَكُمْ ضَرًّا وَلَا رَشَدًا ۝٢١

Say, "Indeed, I do not possess for you [the power of] harm or right direction."