I decided to start a new thread for Daniyaal.
The hadith I was referring to was from Bukhari and Muslim, and relate to comments made when Surat al-Jumma was revealed:
A hadith given by al-Bukhari and Muslim states that Abu Hurairah (ra) narrated Allah's Messenger (saw) as saying:"If the Religion were at the Pleiades, even then a person from Persia would have taken hold of it, or one amongst the Persian descent would surely have found it."
Abu Hurairah (ra) also narrates:"We were sitting in the company of Allah's Apostle (saw) when Surat al-Jum`a was revealed to him and when he recited amongst them, (those who were sitting there) said `Allah's Messenger?' but Allah's Apostle (saw) made no reply, until he was questioned once, twice or thrice, and there was amongst us Salman the Persian.
Allah's Apostle (saw) placed his hand on Salman and then said:"Even if faith were near the Pleiades, a man from amongst these would surely find it."
When read with the hadith about the latter days - when nothing will be left of Islam but it's name, nothing of the Quran but it's script, many beautiful mosques which are full of people but empty of righteousness etc - there is only one personage who will bring people back to faith - the rightly guided leader, Imam Mahdi.
It is in the latter days that faith will have risen to the Pleiades (a constellation - i.e. the stars), and it will be from a descendant of Salman the Persian that the man will find it - i.e. the Imam Mahdi will be a descendant of Salman Farsi.
The other hadith about the same man being a descendant of Fatima, also needs to be fulfilled - and there are many Persians who also have this lineage.
I did not see in your references anywhere where it said the Imam will be an Arab.
Also Daniyal, you talk of the return of Jesus - he is also a non-Arab, the Messiah for the Jews.
[PS - read Sura Jumma to see the context of the hadith - the Sura talks about the latter days and the Prophet's community at these times referred to in 62v3]
Cheers,
Shafique