Almighty Allah said (translation):
O you who have believed, why do you say what you do not do?
Great is hatred in the sight of Allah that you say what you do not do.
[Quran, Surat As-Saf (61):2-3]
Almighty Allaah said (translation):
The good deed and the evil deed cannot be equal. Repel (the evil) with one which is better (i.e. Allah ordered the faithful believers to be patient at the time of anger, and to excuse those who treat them badly), then verily! he, between whom and you there was enmity, (will become) as though he was a close friend.
[Quran, Surat Fussilat (41):34]
Almighty Allaah said (translation):
O you who believe! Enter not houses other than your own, until you have asked permission and greeted those in them, that is better for you, in order that you may remember.
[Quran, Surat An-Nūr (24):27]
Almighty Allaah said (translation):
When you are greeted with a greeting, greet in return with what is better than it, or (at least) return it equally. Certainly, Allaah is Ever a Careful Account Taker of all things.
[Quran, Surat An-Nisā' (4):86]
Almighty Allaah said (translation):
They ask you (O Muhammad [peace be upon him]) about the new moons. Say: These are signs to mark fixed periods of time for mankind and for the pilgrimage. It is not Al-Birr (piety, righteousness, etc.) that you enter the houses from the back but Al-Birr (is the quality of the one) who fears Allah. So enter houses through their proper doors, and fear Allah that you may be successful.
[Quran, Soorah Al-Baqarah (2):189]
Almighty Allaah said (translation):
And eat up not one another’s property unjustly (in any illegal way e.g. stealing, robbing, deceiving, etc.), nor give bribery to the rulers (judges before presenting your cases) that you may knowingly eat up a part of the property of others sinfully.
[Quran, Soorah Al-Baqarah (2):188]
Almighty Allaah said (translation):
O you who believe! Avoid much suspicions, indeed some suspicions are sins. And spy not, neither backbite one another. Would one of you like to eat the flesh of his dead brother? You would hate it (so hate backbiting). And fear Allah. Verily, Allah is the One Who accepts repentance, Most Merciful.
[Quran, Soorah Al-Hujuraat (49):12]
Almighty Allaah said (translation):
And give full measure when you measure, and weigh with a balance that is straight. That is good (advantageous) and better in the end.
[Quran, Soorah al-Israa (17):35]
