'A'isha (Allah be pleased with her) reported that Allah's Apostle ﷺ married her when she was seven years old, and he was taken to his house as a bride when she was nine, and her dolls were with her; and when he (the Holy Prophet) died she was eighteen years old. (Using translation from Muslim 1422c)
«نَكَحَ النَّبِيُّ ﷺ عَائِشَةَ وَهِيَ بِنْتُ سِتِّ سَنَوَاتٍ أَوْ سَبْعٍ وَزُفَّتْ إِلَيْهِ وَهِيَ بِنْتُ تِسْعِ سِنِينَ وَلُعَبُهَا مَعَهَا وَمَاتَ عَنْهَا وَهِيَ بِنْتُ ثَمَانِ عَشْرَةَ سَنَةً»