Surah Luqman 31:14

وَوَصَّيْنَا ٱلْإِنسَـٰنَ بِوَٰلِدَيْهِ حَمَلَتْهُ أُمُّهُۥ وَهْنًا عَلَىٰ وَهْنٍ وَفِصَـٰلُهُۥ فِى عَامَيْنِ أَنِ ٱشْكُرْ لِى وَلِوَٰلِدَيْكَ إِلَىَّ ٱلْمَصِيرُ

And We have enjoined upon man [care] for his parents. His mother carried him, [increasing her] in weakness upon weakness, and his weaning is in two years. Be grateful to Me and to your parents; to Me is the [final] destination.

Translation: Saheeh International

Tafsir

And We have enjoined man concerning his parents We commanded him to be dutiful towards them — his mother bears him and weakens in weakness after weakness that is to say she is weakened by the pregnancy the pains of labour and the delivery; …

Excerpt from Tafsir al-Jalalayn, commentary on 31:14, via Quran.com. The reader has the full commentary and 9 more tafsirs.