It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "Before the Day of Judgment, usury, adultery, and wine will become widespread."

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Before the Day of Judgment, tribulations will appear like pieces of a dark night; a man will be a believer in the morning and a disbeliever in the evening, and a believer in the evening and a disbeliever in the morning. People will sell their religion for worldly goods."

It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "The signs of the Hour are six: my passing away, the conquest of Bayt al-Maqdis, death that will seize people like the disease that seizes the chest of sheep, the emergence of a tribulation that will affect every Muslim household, a man considering a thousand dinars as insignificant (i.e., regarding it as little), and the betrayal of the Romans; they will march under eighty banners, and under each banner there will be twelve thousand men."

Sayyiduna Hudhayfah (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings of Allah be upon him) was asked about the Hour (Day of Judgment). In response, he recited this verse: "Its knowledge is only with my Lord. None will reveal its time except Him." (Surah Al-A'raf: 187) Then he said: "However, I will inform you of its signs and the matters that will occur before it. Before it, there will be tribulation (fitnah) and killing (harj)." The Companions said: We know the meaning of tribulation, but what is meant by harj? The Prophet (peace and blessings of Allah be upon him) said: "It is a word from the Abyssinian language; it means 'killing.' And (before the Hour) there will be estrangement among people; no one will recognize anyone else."