Here is the description of the Messiah of the past sent to Bani Israel
حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا إِسْرَائِيلُ، أَخْبَرَنَا عُثْمَانُ بْنُ الْمُغِيرَةِ، عَنْ مُجَاهِدٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم “ رَأَيْتُ عِيسَى وَمُوسَى وَإِبْرَاهِيمَ، فَأَمَّا عِيسَى فَأَحْمَرُ جَعْدٌ عَرِيضُ الصَّدْرِ، وَأَمَّا مُوسَى فَآدَمُ جَسِيمٌ سَبْطٌ كَأَنَّهُ مِنْ رِجَالِ الزُّطِّ ”.
Narrated Ibn `Abbas:
The Prophet (ﷺ) said, “I saw Moses, Jesus and Abraham (on the night of my Ascension to the heavens). Jesus was of red complexion, curly hair and a broad chest. Moses was of brown complexion, straight hair and tall stature as if he was from the people of Az-Zutt.” (Bukhari Volume 5, book 55, hadith 648)
Description of the Latter day Messiah(as)
حَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ، حَدَّثَنَا أَبُو ضَمْرَةَ، حَدَّثَنَا مُوسَى، عَنْ نَافِعٍ، قَالَ عَبْدُ اللَّهِ ذَكَرَ النَّبِيُّ صلى الله عليه وسلم يَوْمًا بَيْنَ ظَهْرَىِ النَّاسِ الْمَسِيحَ الدَّجَّالَ، فَقَالَ ” إِنَّ اللَّهَ لَيْسَ بِأَعْوَرَ، أَلاَ إِنَّ الْمَسِيحَ الدَّجَّالَ أَعْوَرُ الْعَيْنِ الْيُمْنَى، كَأَنَّ عَيْنَهُ عِنَبَةٌ طَافِيَةٌ ”. ” وَأَرَانِي اللَّيْلَةَ عِنْدَ الْكَعْبَةِ فِي الْمَنَامِ، فَإِذَا رَجُلٌ آدَمُ كَأَحْسَنِ مَا يُرَى مِنْ أُدْمِ الرِّجَالِ، تَضْرِبُ لِمَّتُهُ بَيْنَ مَنْكِبَيْهِ، رَجِلُ الشَّعَرِ، يَقْطُرُ رَأْسُهُ مَاءً، وَاضِعًا يَدَيْهِ عَلَى مَنْكِبَىْ رَجُلَيْنِ وَهْوَ يَطُوفُ بِالْبَيْتِ. فَقُلْتُ مَنْ هَذَا فَقَالُوا هَذَا الْمَسِيحُ ابْنُ مَرْيَمَ. ثُمَّ رَأَيْتُ رَجُلاً وَرَاءَهُ جَعْدًا قَطَطًا أَعْوَرَ عَيْنِ الْيُمْنَى كَأَشْبَهِ مَنْ رَأَيْتُ بِابْنِ قَطَنٍ، وَاضِعًا يَدَيْهِ عَلَى مَنْكِبَىْ رَجُلٍ، يَطُوفُ بِالْبَيْتِ، فَقُلْتُ مَنْ هَذَا قَالُوا الْمَسِيحُ الدَّجَّالُ ”. تَابَعَهُ عُبَيْدُ اللَّهِ عَنْ نَافِعٍ.
Narrated `Abdullah:
The Prophet (ﷺ) mentioned the Masih Ad-Dajjal in front of the people saying, Allah is not one-eyed while Masih Ad-Dajjal is blind in the right eye and his eye looks like a bulging out grape. While sleeping near the Ka`ba last night, I saw in my dream a man of brown color the best one can see amongst brown color and his hair was long that it fell between his shoulders. His hair was lank and water was dribbling from his head and he was placing his hands on the shoulders of two men while circumambulating the Ka`ba. I asked, ‘Who is this?’ They replied, ‘This is Jesus, son of Mary.’ Behind him I saw a man who had very curly hair and was blind in the right eye, resembling Ibn Qatan (i.e. an infidel) in appearance. He was placing his hands on the shoulders of a person while performing Tawaf around the Ka`ba. I asked, ‘Who is this? ‘They replied, ‘The Masih, Ad-Dajjal.’ (sahih Bukhari Volume 4, book 55, Hadith #639)
There have been attempts to state for example there is a saying that the prophet did not mention Isa(as) being of reddish complexion ever but this is totally contradictory to the facts and nor can we attribute it to the sahaba as its clear all the descriptions of the messiah sent to Bani Israel always mention reddish complexion and all latter day descriptions mention brown. There is a clear reason to this and why the Prophet Muhammad(saw) had made this distinction.
Another beautiful point to notice is that all Muslims know that the one to revive Islam in the end times would be this messiah. We all know that Isa(as) was of Bani Israel but the Prophet(saw) made it clear that this person would be of the lineage of Salman Farsi(ra) meaning from the Persian Lineage as Ahmad(as) was
حَدَّثَنِي عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنِي سُلَيْمَانُ بْنُ بِلاَلٍ، عَنْ ثَوْرٍ، عَنْ أَبِي الْغَيْثِ، عَنْ أَبِي هُرَيْرَةَ، رضى الله عنه قَالَ كُنَّا جُلُوسًا عِنْدَ النَّبِيِّ صلى الله عليه وسلم فَأُنْزِلَتْ عَلَيْهِ سُورَةُ الْجُمُعَةِ {وَآخَرِينَ مِنْهُمْ لَمَّا يَلْحَقُوا بِهِمْ} قَالَ قُلْتُ مَنْ هُمْ يَا رَسُولَ اللَّهِ فَلَمْ يُرَاجِعْهُ حَتَّى سَأَلَ ثَلاَثًا، وَفِينَا سَلْمَانُ الْفَارِسِيُّ، وَضَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَدَهُ عَلَى سَلْمَانَ ثُمَّ قَالَ ” لَوْ كَانَ الإِيمَانُ عِنْدَ الثُّرَيَّا لَنَالَهُ رِجَالٌ ـ أَوْ رَجُلٌ ـ مِنْ هَؤُلاَءِ ”.
Narrated Abu Huraira:
While we were sitting with the Prophet (ﷺ) Surat Al-Jumu’a was revealed to him, and when the Verse, “And He (Allah) has sent him (Muhammad) also to other (Muslims)…..’ (62.3) was recited by the Prophet, I said, “Who are they, O Allah’s Messenger (ﷺ)?” The Prophet (ﷺ) did not reply till I repeated my question thrice. At that time, Salman Al-Farisi was with us. So Allah’s Messenger (ﷺ) put his hand on Salman, saying, “If Faith were at (the place of) Ath-Thuraiya (pleiades, the highest star), even then a man from these people (i.e. Salman’s folk) would attain it.” (Bukhari, Volume 6, Book 60, Hadith #4897)
Imam Bukhari(ra) made it clear himself by arranging these Hadith in this order. The past Isa(As) together after the other and the latter day Messiah(as) ones right after the other. Its clear they refer to two different people or there would not have been two different personalities nor Would Muhammad(saw) ask who the second person was since he had already seen Jesus Son Of Mary many times in his dreams before.
Another interesting thing to note is that When Nabi(saw) mentions the Isa(As) of the past, he mentions his company with the dead which include Moses(As) since he was a prophet in the Ummah of Moses(as). But when Nabi(Saw) mentions the latter day Messiah(as) he mentions its company with dajjal rather then with the dead.
Now we know that firstly this refers to the latter day messiah(as) and we also know that Jesus(as) was not Persian. We also know that yes Ahmad(As) was of Persian lineage which clearly shows us that this Hadith refers to him. Some say that this refers to men but its clear that the Hadith is talking about Muhammad(Saw) coming in the latter days in spiritual sense which shows it is a man since he himself was a man. Even if someone says its men it is still fulfilled as we have khilafat. Secondly some say this was for Imam Abu Hanifa(ra) but by saying this you are only disgracing Islam by claiming that Islam was already at the pleides during the time of Imam Abu Hanifa(ra).