Sahih Bukhari
Good Manners and Form (Al-Adab)
Volume: 008 / Book Number: 073 / Hadith Number: 63
arrated 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).