The Noble Shaykh Muhammad Ibn Saalih al-Uthaimeen (Rahima-hu Allah) said:
At-Taa’ifah al-Mansoorah – they are Ahlus-Sunnah wal-Jamaa’ah (those who adhere to the Prophet’s Way and Unite upon the truth). They are those about whom the Prophet said: “A Taa’ifah (Group) from my Ummah will remain upon the Truth – Mansoorah (Victorious, by the support of Allah); they will not be harmed by those who abandon them, nor by those who oppose them, until the command of Allah comes.” In another narration: “…until the Hour (of Judgement) comes.” [al-Bukhaaree, Muslim, Abu Daawood, at-Tirmidhee…See: Silsilah al-Ahaadeeth as-Saheehah, 4/597-604, Al-Albaanee]
The meaning of the words: “…until the Hour (of Judgement) comes,” is until the actual Judgement is near. The only reason why we have explained it in this way is in order to reconcile between this Hadeeth and the Hadeeth: “…Verily, from the most evil of humanity are those whom the Hour (of Judgement) will overtake while they are still living.” Indeed, the Ahlus-Sunnah wal-Jamaa’ah are the best of the creation, after the Prophet. Hence, it is not possible for the Hour (of Judgement) to overtake them [while they are still living].
The words: ‘…And they are at-Taa’ifah al-Mansoorah’ mean that the Ahlus- Sunnah wal-Jamaa’ah – they are the “Victorious Group” which Allah, the Mighty the Majestic will support and give victory to. This is because they are included in His, the Most High’s, saying: “Verily, We will indeed make victorious Our Messengers and those who believe in this world’s life and on the Day when the witnesses will stand forth (i.e. the Day of Resurrection).” [Ghaafir 40:51]
Hence, they are supported and victorious [in this world] as well as the fact that the final end will be for them (in the next life)…. Also, [know] that an-Nasr (the Victory) is not the victory of an individual by himself. Rather, the real victory is that Allah, the Most High, supports the Truth that you call to. Even if a person is afflicted with humiliation in this world, this does not negate the (promised) victory. Indeed, the Prophet was persecuted greatly. However, in the end he was given victory over those who persecuted him, and he entered Makkah victorious, strengthened and triumphant, after going out in fear…
The words: ‘A Taa’ifah (Group) from my Ummah will remain upon the Truth…’ This group is not limited to a certain number, place and time. It is possible that it be supported in some matter of the Deen in one place, while in another place another group [from the people of Truth] will be supported. Hence, collectively through these two groups the Deen will remain victorious, triumphant.
[Quoted from Majmoo’ Fataawa al -‘Aqeedah, Shaykh al-‘Uthaimeen, 4/314, &
Sharh al-‘Aqeedah al-Waasitiyyah, al-‘Uthaimeen, 2/377-380]