• أَنصَحَ
• أَنصَحُ
• نَاصِح
• نَصَحْتُ
• نَصَحُوا۟
• نُصْحىٓ
• نَّصُوح

Appears 11 times in the Quran.

1. 7:21 وَقَاسَمَهُمَآ إِنِّى لَكُمَا لَمِنَ ٱلنَّٰصِحِينَ

   And he swore to them both: Most surely I am a sincere adviser to you.
   

2. 7:62 أُبَلِّغُكُمْ رِسَٰلَٰتِ رَبِّى وَأَنصَحُ لَكُمْ وَأَعْلَمُ مِنَ ٱللَّهِ مَا لَا تَعْلَمُونَ

   I deliver to you the messages of my Lord, and I offer you good advice and I know from Allah what you do not know.
   

3. 7:68 أُبَلِّغُكُمْ رِسَٰلَٰتِ رَبِّى وَأَنَا۠ لَكُمْ نَاصِحٌ أَمِينٌ

   I deliver to you the messages of my Lord and I am a faithful adviser to you:
   

4. 7:79 فَتَوَلَّىٰ عَنْهُمْ وَقَالَ يَٰقَوْمِ لَقَدْ أَبْلَغْتُكُمْ رِسَالَةَ رَبِّى وَنَصَحْتُ لَكُمْ وَلَٰكِن لَّا تُحِبُّونَ ٱلنَّٰصِحِينَ

   Then he turned away from them and said: O my people I did certainly deliver to you the message of my Lord, and I gave you good advice, but you do not love those who give good advice.
   

5. 7:93 فَتَوَلَّىٰ عَنْهُمْ وَقَالَ يَٰقَوْمِ لَقَدْ أَبْلَغْتُكُمْ رِسَٰلَٰتِ رَبِّى وَنَصَحْتُ لَكُمْ فَكَيْفَ ءَاسَىٰ عَلَىٰ قَوْمٍ كَٰفِرِينَ

   So he turned away from them and said: O my people! certainly I delivered to you the messages of my Lord and I gave you good advice; how shall I then be sorry for an unbelieving people?
   

6. 9:91 لَّيْسَ عَلَى ٱلضُّعَفَآءِ وَلَا عَلَى ٱلْمَرْضَىٰ وَلَا عَلَى ٱلَّذِينَ لَا يَجِدُونَ مَا يُنفِقُونَ حَرَجٌ إِذَا نَصَحُوا۟ لِلَّهِ وَرَسُولِهِۦ مَا عَلَى ٱلْمُحْسِنِينَ مِن سَبِيلٍ وَٱللَّهُ غَفُورٌ رَّحِيمٌ

   It shall be no crime in the weak, nor in the sick, nor in those who do not find what they should spend (to stay behind), so long as they are sincere to Allah and His Messenger; there is no way (to blame) against the doers of good; and Allah is Forgiving, Merciful;
   

7. 11:34 وَلَا يَنفَعُكُمْ نُصْحِىٓ إِنْ أَرَدتُّ أَنْ أَنصَحَ لَكُمْ إِن كَانَ ٱللَّهُ يُرِيدُ أَن يُغْوِيَكُمْ هُوَ رَبُّكُمْ وَإِلَيْهِ تُرْجَعُونَ

   And if I intend to give you good advice, my advice will not profit you if Allah intended that He should leave you to go astray; He is your Lord, and to Him shall you be returned.
   

8. 12:11 قَالُوا۟ يَٰٓأَبَانَا مَا لَكَ لَا تَأْمَ۫نَّا عَلَىٰ يُوسُفَ وَإِنَّا لَهُۥ لَنَٰصِحُونَ

   They said: O our father! what reason have you that you do not trust in us with respect to Yusuf? And most surely we are his sincere well-wishers:
   

9. 28:12 وَحَرَّمْنَا عَلَيْهِ ٱلْمَرَاضِعَ مِن قَبْلُ فَقَالَتْ هَلْ أَدُلُّكُمْ عَلَىٰٓ أَهْلِ بَيْتٍ يَكْفُلُونَهُۥ لَكُمْ وَهُمْ لَهُۥ نَٰصِحُونَ

   And We ordained that he refused to suck any foster mother before, so she said: Shall I point out to you the people of a house who will take care of him for you, and they will be benevolent to him?
   

10. 28:20 وَجَآءَ رَجُلٌ مِّنْ أَقْصَا ٱلْمَدِينَةِ يَسْعَىٰ قَالَ يَٰمُوسَىٰٓ إِنَّ ٱلْمَلَأَ يَأْتَمِرُونَ بِكَ لِيَقْتُلُوكَ فَٱخْرُجْ إِنِّى لَكَ مِنَ ٱلنَّٰصِحِينَ

    And a man came running from the remotest part of the city. He said: O Musa! surely the chiefs are consulting together to slay you, therefore depart (at once); surely I am of those who wish well to you.
    

11. 66:8 يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ تُوبُوٓا۟ إِلَى ٱللَّهِ تَوْبَةً نَّصُوحًا عَسَىٰ رَبُّكُمْ أَن يُكَفِّرَ عَنكُمْ سَيِّـَٔاتِكُمْ وَيُدْخِلَكُمْ جَنَّٰتٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَٰرُ يَوْمَ لَا يُخْزِى ٱللَّهُ ٱلنَّبِىَّ وَٱلَّذِينَ ءَامَنُوا۟ مَعَهُۥ نُورُهُمْ يَسْعَىٰ بَيْنَ أَيْدِيهِمْ وَبِأَيْمَٰنِهِمْ يَقُولُونَ رَبَّنَآ أَتْمِمْ لَنَا نُورَنَا وَٱغْفِرْ لَنَآ إِنَّكَ عَلَىٰ كُلِّ شَىْءٍ قَدِيرٌ

    O you who believe! turn to Allah a sincere turning; maybe your Lord will remove from you your evil and cause you to enter gardens beneath which rivers flow, on the day on which Allah will not abase the Prophet and those who believe with him; their light shall run on before them and on their right hands; they shall say: Our Lord! make perfect for us our light, and grant us protection, surely Thou hast power over all things.