Surah Al-Ahzab 33:6

ٱلنَّبِىُّ أَوْلَىٰ بِٱلْمُؤْمِنِينَ مِنْ أَنفُسِهِمْ ۖ وَأَزْوَٰجُهُۥٓ أُمَّهَـٰتُهُمْ ۗ وَأُو۟لُوا۟ ٱلْأَرْحَامِ بَعْضُهُمْ أَوْلَىٰ بِبَعْضٍ فِى كِتَـٰبِ ٱللَّهِ مِنَ ٱلْمُؤْمِنِينَ وَٱلْمُهَـٰجِرِينَ إِلَّآ أَن تَفْعَلُوٓا۟ إِلَىٰٓ أَوْلِيَآئِكُم مَّعْرُوفًا ۚ كَانَ ذَٰلِكَ فِى ٱلْكِتَـٰبِ مَسْطُورًا

The Prophet is more worthy of the believers than themselves, and his wives are [in the position of] their mothers. And those of [blood] relationship are more entitled [to inheritance] in the decree of Allāh than the [other] believers and the emigrants, except that you may do to your close associates a kindness [through bequest]. That was in the Book inscribed.

Translation: Saheeh International

Tafsir

The Prophet is closer to the believers than their own souls in terms of what he calls them to and what their own souls have called them to contravene and his wives are their mothers insofar as they the believers are forbidden to marry them. …

Excerpt from Tafsir al-Jalalayn, commentary on 33:6, via Quran.com. The reader has the full commentary and 9 more tafsirs.