Sahih Bukhari | Volume 8 | Hadith Number 63

Narrated by Abu Huraira
Allah's Apostle said, "Time will pass rapidly, good deeds will decrease, and miserliness will be thrown (in the hearts of the people), and the Harj (will increase)." They asked, "What is the Harj?" He replied, "(It is) killing (murdering), (it is) murdering (killing).