Narrated Anas: Allah's Apostle said, "Help your brother, whether he is an oppressor or he is an oppressed one. People asked, "O Allah's Apostle! It is all right to help him if he is oppressed, but how should we help him if he is an oppressor?" The Prophet said, "By preventing him from oppressing others." (Bukhari)
Doing nothing
is like being an accomplice
to the crime.
“…if any one slew a person - unless it be for murder or for spreading mischief in the land - it would be as if he slew the whole people: and if any one saved a life, it would be as if he saved the life of the whole people.” (Quran 5:32)
And the believers, men and women, are protecting friends of one another, they enjoin the right and forbid the wrong.
(Quran 9:71)
The ummah is like a body,
when one limb is harmed,
the entire body responds.
Muhammad, peace be upon him, said, "You will see the believers in their mutual kindness, love and sympathy just like one body. When a limb complains, the whole body responds to it with wakefulness and fever."
And among Allah's signs is this:
that S/He created mates for you from yourselves
that you may find rest and peace of mind in them,
and S/He ordained between you love and mercy.
Certainly, herein indeed are signs for people who reflect.
The Prophet Muhammad (peace be upon him) once had
several coins that he asked his wife to distribute in
charity. But due to the Prophet's illness at the time,
she did not have an opportunity to give out the coins.
When the Prophet learned of this, he asked for the
coins, placed them in his hand, and then said: "What
would God's Prophet think if he were to meet God, who
is Great and Glorious, while (still) possessing
these?" - Al-Tirmidhi, Hadith 586
The Prophet Muhammad (peace be upon him) said: "Every
Muslim has to give in charity." The people then asked:
"(But what) if someone has nothing to give, what
should he do?" The Prophet replied: "He should work
with his hands and benefit himself and also give in
charity (from what he earns)." The people further
asked: "If he cannot find even that?" He replied: "He
should help the needy who appeal for help." Then the
people asked: "If he cannot do (even) that?" The
Prophet said finally: "Then he should perform good
deeds and keep away from evil deeds, and that will be
regarded as charitable deeds." - Sahih Al-Bukhari, Volume 2, Hadith 524
The Prophet Muhammad (peace be upon him) said:
"Charity is prescribed for each descendant of Adam every day the sun
rises." He was then asked: "From what do we give charity every day?" The
Prophet answered: "The doors of goodness are many...enjoining good,
forbidding evil, removing harm from the road, listening to the deaf,
leading the blind, guiding one to the object of his need, hurrying with
the strength of one's legs to one in sorrow who is asking for help, and
supporting the feeble with the strength of one's arms--all of these are
charity prescribed for you." He also said: "Your smile for your brother
is charity." - Fiqh-us-Sunnah, Volume 3, Number 98
"Spend (in charity) out of the sustenance that
We have bestowed on you before that time when death will come to
someone, and he shall say: "O my Lord! If only you would grant me
reprieve for a little while, then I would give in charity, and be among
the righteous." - The Holy Quran, 63:10
A man once said to the Prophet Muhammad (peace
be upon him): "I have plenty of property, a large family, a great deal
of money, and I am a gracious host to my guests. Tell me how to conduct
my life and how to spend (my money)." The Prophet replied: "Give
(regular charity) out of your property, for truly it is a purifier, and
be kind to your relatives and acknowledge the rights of the poor,
neighbors and (those in need who seek your help)." - Fiqh-us-Sunnah, Volume 3, Number 3
"They ask you (O Muhammad) what they should spend in
charity. Say: 'Whatever you spend with a good heart,
give it to parents, relatives, orphans, the helpless,
and travellers in need. Whatever good you do, God is
aware of it.'" - The Holy Quran, 2:215
The Prophet Muhammad (peace be upon him) said: "Save yourself from hellfire by giving even half a date-fruit in charity." - Sahih Al-Bukhari, Volume 2, Hadith 498
A prostitute was forgiven
by Allah, because, passing by a panting dog near a well and seeing that the
dog was about to die of thirst, she took off her shoe, and tying it with
her head-cover she drew out some water for it. So, Allah forgave her because
of that. - Sahih Al-Bukhari, 4:538