النَّبِيُّ أَوْلَى بِالْمُؤْمِنِينَ مِنْ أَنفُسِهِمْ وَأَزْوَاجُهُ أُمَّهَاتُهُمْ وَأُوْلُو الْأَرْحَامِ بَعْضُهُمْ أَوْلَى بِبَعْضٍ فِي كِتَابِ اللَّهِ مِنَ الْمُؤْمِنِينَ وَالْمُهَاجِرِينَ إِلَّا أَن تَفْعَلُوا إِلَى أَوْلِيَائِكُم مَّعْرُوفًا كَانَ ذَلِكَ فِي الْكِتَابِ مَسْطُورًا
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سورة الأحزاب
(33/6) The Prophet is closer to the believers than their own souls and his wives are their mothers, and the owners of kinship (relatives) are closer one to other in the Book of Allah than believers and the Emigrants. Except that you do good to your friends. These are written in the Book, line by line.
Surah Al-Ahzab