Jabir bin 'Abdullah (RA) reported that Allah's Messenger ( صلی اللہ علیہ وسلم ) said: Be on your guardagainst committing oppression, for oppression is a darkness on the Day of Resurrection, and be on your guard against pettimindedness for pettimindedness destroyed those who were before you, as it incited them to shed blood and make lawful what was unlawful for them.