One criteria for charity giving

[Charity is] for the poor who have been restricted for the cause of Allah, unable to move about in the land. An ignorant [person] would think them self-sufficient because of their restraint, but you will know them by their [characteristic] sign. They do not ask people persistently [or at all]. And whatever you spend of good – indeed, Allah is Knowing of it.
Al Quran 2:273


Five Main rights of believer to each other

Messenger of Allah (ﷺ) said,
“A believer owes another believer five rights: responding to greetings, visiting him in illness, following his funeral, accepting his invitation, and saying ‘Yarhamuk-Allah (May Allah have mercy on you),’ when he says ‘Al-hamdu lillah (Praise be to Allah)’ after sneezing”.
[Al Bukhari and Muslim]


The boundary between legal and illegal things.

Narrated An-Nu’man bin Bashir:
I heard Allah’s Messenger (peace be upon him) saying,

Both legal and illegal things are evident but in between them there are doubtful (suspicious) things and most of the people have no knowledge about them. So whoever saves himself from these suspicious things saves his religion and his honor. And whoever indulges in these suspicious things is like a shepherd who grazes (his animals) near the Hima (private pasture) of someone else and at any moment he is liable to get in it. (O people!) Beware! Every king has a Hima and the Hima of Allah on the earth is His illegal (forbidden) things. Beware! There is a piece of flesh in the body if it becomes good (reformed) the whole body becomes good but if it gets spoilt the whole body gets spoilt and that is the heart.

(Sahih al-Bukhari, Vol. 1, Book 2, Hadith 45)


Sahih Bukhari 2-45-a- center-brighter.jpg