Re: Return of Hazrat Isa A.S.
It never was an absurd question and you’re obliged to answer that by giving me Quranic references that it is possible. That upon His second coming, Isa (AS) will know Islam without any revelation from Allah, without any prior knowledge of Quran.
I will expand a little more on this topic about how a previous prophet cannot be in an ummah of a prophet that is to come in the future. However, that same prophet can be grouped with the prophet prior to Him. This is what Quran has to say :
*O People of the Book! Why do you dispute concerning Abraham, when the Torah and the Gospel were not revealed till after him? Will you not then understand? (3:66)
*
In this verse Allāh draws the attention of Jews and Christians by mentioning a principle that religious groups are formed after the revelation of a Divine Book. Thus Jewish and Christian communities came into being after the revelation of the Torah and the Gospel. Whereas Ibrahīm (as) was before the revelation of the Torah and the Gospel, i.e., before the formation of Jewish and Christian communities. Thus he could not be considered a member of both of these groups.
Though, Ibrahim (as) can be in group of a prophet prior to Him, referring to Noah (as). As is said in the following verse :
*And, verily, of his party was Abraham; (37:84)
*
As both Prophet Moses(as) and Prophet Jesus(as) came after Prophet Ibrahim(as) thus he cannot be considered as member of Jewish and Christian communities. However, according to the above verse, he came after Prophet Noah (as)'s community.
Now that was Quranic references. I will provide a hadith which will make things even more clear for you.
In that hadith, it is mentioned that Prophet Moses(as) expressed his desire to become a member of Muslim Ummah. This desire was not accepted by Allah on the ground that Prophet Moses(as) is before the formation of Muslim Ummah that shall be formed, after two thousand years, with the revelation of the Holy Quran. Thus the same obstacle for Prophet Moses(as) to become a member of Muslim Ummah is for Prophet Jesus(as). Thus, he cannot become a member of the Muslim Ummah which came into being with the revelation of the Holy Quran, after six hundred years of his time.