A Very Important Question:

If it is said: How does the previously-mentioned Hadith -that was agreed upon - denote that they will be treated as ransom for the Believers on the Day of Resurrection and that they will enter Hellfire, while no Messengers were sent to them and Allah the Almighty says: {And We never punish until We have sent a Messenger (to give warning)} (Al-Isra', 15)?
The answer is that: They will never be punished until they are given
warning. Thereupon, if they were existing before the time of Prophet Muhammad (Peace be upon him) and Messengers were sent to them, thus, they were given warning. And, if no Messengers were sent to them, they would be treated as "People of the Fitrah" and those to whom the Message of Islam did not reach or be conveyed. However, it is indicated by the Hadith transmitted by some of the Companions of the Prophet (Peace be upon him) that he said: "Those and the like will be tested on the pathways of the Resurrection: and whoever responds to the caller, he will enter Paradise. And, whoever refuses, he will enter the Fire."
However, testing them neither necessitates their salvation, nor contradicts with the saying that they will enter Hell-fire. For Allah the Almighty reveals to His Prophet (Peace be upon him) what He wills of the Unseen, and hence, He informed him that they will be from among the people of Hell and that their nature denies the truth and submission thereto, as they do not respond to the caller till the Day of Judgment. This indicates that, they would be more stubborn in rejecting the truth if they were to come to know it in this present life. In the pathways of Resurrection, some of those who used to belie the truth in the present life will submit themselves to the truth. Almighty Allah says: {And if you only could see when the Mujrimun (criminals, disbelievers, polytheists, sinners) shall hang their heads before their Lord (saying): "Our Lord! We have now seen and heard, so send us back (to the world), that we will do righteous good deeds. Verily! We now believe with certainty "}. (As-Sajdah, 12) However, the Prophetic Hadith indicating that the Prophet (Peace be upon him) invited them on the Night Journey toembrace Islam and they refused, this Hadith is an invented and fabricated one.
The one who fabricated it was the liar, `Amr Ibn As-Subh.