“Near the establishment of the Hour, there will be the days of Al−Harj, and the religious knowledge will be taken away (vanish i.e. by the death of Religious scholars) and general ignorance will spread.” Abu Musa said, “Al−Harj, in the Ethiopian language, means killing,”
The Prophet also said, “This life is a prison for the believers and paradise for the disbelievers.”
Islam Shall Return 