All perfect praise be to Allah, the Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
It was authentically reported in Saheeh Al-Bukhari and other Hadith resources and others that the Prophet, sallallaahu ‘alayhi wa sallam, married ‘A’ishah when she was six years old and that the marriage was consummated when she was nine. This fact is reported contiguously in the books of Seerah (biography). It is well known that the Prophet, sallallaahu ‘alayhi wa sallam, did not consummate the marriage with ‘A’ishah before she had attained puberty and become fit for copulation. An indication of the authenticity of this information is the fact that the Prophet, sallallaahu ‘alayhi wa sallam, waited for such a period between concluding the marriage contract and the consummation of marriage. You may refer, for example, to Fat-h Al-Bari Sharh Saheeh Al-Bukhari (7/281) by Al-Hafith Ibn Hajar, in the chapter of the Prophet's marriage to ‘A’ishah; Ar-Rawdh Al-Unuf (4/427) by As-Suhayli; and Subul Al-Huda wa Ar-Rashad Fi Seerat Khayr Al-‘Ibad (11/164) by As-Salihi Ash-Shami.
We also advise our dear questioner not to engage in discussions with Christians or others except over issues about which he has sufficient knowledge lest his mind may get confused or be subject to and affected by suspicions.
Allah knows best.