Surah al-Hajj, and the words of Allah the Exalted: "O people, fear your Lord; indeed the convulsion of the Hour is a tremendous thing"

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrated: The Prophet (peace and blessings be upon him) recited this verse while his Companions were with him: (Allah Almighty says:) "O people! Fear your Lord. Indeed, the quake of the Hour is a tremendous thing." He recited it to the end of the verse, then said: "Do you know what kind of day that will be?" The people said: "Allah and His Messenger know best." The Prophet (peace and blessings be upon him) said: "It will be the day when Allah Almighty will say: 'O Adam, rise and send a party to Hell.' He will say: 'How many people are to be sent to Hell?' The Lord will say: 'Out of every thousand, nine hundred and ninety-nine will go to Hell and one will go to Paradise.'" (The narrator said:) This weighed heavily on the people. The Prophet (peace and blessings be upon him) said: "I hope that you will be a quarter of the people of Paradise, and I hope that you will be half of the people of Paradise." Then the Prophet (peace and blessings be upon him) said: "Act, and receive the glad tidings that you are between two kinds of creation which make numerous whomever they are counted with: they are Ya'juj and Ma'juj. Among the other nations, your example is like a spot of a different colour on the side of a camel, or like a mark on the foreleg of an animal. My Ummah is one part out of a thousand parts." (Allamah Haythami says:) I say: Part of it is mentioned in the Sahih.
Al-Bazzar recorded it, and its narrators are the narrators of the Sahih, except Hilal bin Khabbab, who is thiqah (trustworthy).

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrated: The Prophet (peace and blessings be upon him) recited this verse: "A day that will turn children grey-haired." The Prophet (peace and blessings be upon him) said: "That will be the Day of Resurrection, and on that day Allah Almighty will say to Sayyiduna Adam (peace be upon him): 'Rise and send a party of your offspring to Hell.' He will say: 'O my Lord! How many out of how many?' The Lord will say: 'Nine hundred and ninety-nine out of a thousand, and one will be saved.'" This weighed heavily on the Muslims. The Prophet (peace and blessings be upon him) recognised this state of theirs; then, when the Prophet (peace and blessings be upon him) saw it on their faces, he said: "The children of Adam are many, and Ya'juj and Ma'juj are also among the children of Adam. Not one of them will die until a thousand of his own offspring inherit from him. So in them and in others like them there is a shield for you."
Tabarani recorded it; its chain contains Uthman bin Ata' al-Khurasani, who is matruk (abandoned); the majority declared him da'if (weak), and Abu Hatim considered his hadith hasan (good).