Surah Al-Ahqaf 46:15

وَوَصَّيْنَا ٱلْإِنسَـٰنَ بِوَٰلِدَيْهِ إِحْسَـٰنًا ۖ حَمَلَتْهُ أُمُّهُۥ كُرْهًا وَوَضَعَتْهُ كُرْهًا ۖ وَحَمْلُهُۥ وَفِصَـٰلُهُۥ ثَلَـٰثُونَ شَهْرًا ۚ حَتَّىٰٓ إِذَا بَلَغَ أَشُدَّهُۥ وَبَلَغَ أَرْبَعِينَ سَنَةً قَالَ رَبِّ أَوْزِعْنِىٓ أَنْ أَشْكُرَ نِعْمَتَكَ ٱلَّتِىٓ أَنْعَمْتَ عَلَىَّ وَعَلَىٰ وَٰلِدَىَّ وَأَنْ أَعْمَلَ صَـٰلِحًا تَرْضَىٰهُ وَأَصْلِحْ لِى فِى ذُرِّيَّتِىٓ ۖ إِنِّى تُبْتُ إِلَيْكَ وَإِنِّى مِنَ ٱلْمُسْلِمِينَ

And We have enjoined upon man, to his parents, good treatment. His mother carried him with hardship and gave birth to him with hardship, and his gestation and weaning [period] is thirty months. [He grows] until, when he reaches maturity and reaches [the age of] forty years, he says, "My Lord, enable me to be grateful for Your favor which You have bestowed upon me and upon my parents and to work righteousness of which You will approve and make righteous for me my offspring. Indeed, I have repented to You, and indeed, I am of the Muslims."

Translation: Saheeh International

Tafsir

And We have enjoined man to be kind husnan a variant reading has ihsānan that is to say We have commanded him to act kindly towards both of them thus ihsānan is in the accusative as a verbal noun because of the implied verbal action; the same applies to husnan to his parents. …

Excerpt from Tafsir al-Jalalayn, commentary on 46:15, via Quran.com. The reader has the full commentary and 9 more tafsirs.