Cause and effect, are from the wisdom of Allah (SWT).
He has connected the cause and effect of things. For example,
the person who uses good methods in planting his crops will get
a good harvest. Just the same way a person who eats and drinks
healthily will have good health.
Allah (SWT) too has linked spiritual and metaphysical causes to
spiritual results. Allah (SWT) states that the one who is beneficial to
his relatives will have an increase in his life span. Also Allah (SWT)
states that giving charity removes evil.
We human beings wonder how the cause and effect is connected,
and what is the wisdom behind the incidences in life? Some cause
and effects are easy to explain and the wisdom behind them is clear.
On the other hand some of these phenomena's are hard to explain.
However Islam stresses that giving charity increases sustenance.
Following are a few traditions that stress on this fact.
Prophet Muhammad (S) says that: "Attract sustenance by giving charity."
Abu Abdillah (AS) says that: "Allah (SWT) gives help to person equal in
quantity to the charity a person gives."
Imam Jafar Sadiq (AS) says that: "Everything has a key, and the key to
sustenance is charity."
Prophet Muhammad (S) says that: "An act of charity shields
seventy dead people from ill fate."
Prophet Muhammad (S) says that: "Give charity without delay,
for it stands in the way of calamity."
Imam Jafar Sadiq (AS) says that: "An act of charity given openly
prevents seventy types of mishaps, and a secretly given charity
cools the anger of our Lord Allah (SWT)."
Prophet Muhammad (S) has also said that: "The angel of death is
told to remove the soul of a person, but if during that time charity
is given then the order to remove the soul is cancelled."
It has been related in Al-Bihar that Prophet Muhammad (S) said that:
"Allah (SWT) says that when the angel of death is asked to remove
the soul of a person, and if he or she gives Sadaqa,
Allah (SWT) orders the angel of death to stop."
Imam Jafar Sadiq (AS) says that: "An act of charity shields us of
seventy evils of this world including an ill fated death. The one who
gives charity never dies ill fatedly."
According to Islamic beliefs, when we give charity, Allah (SWT) due
to his mercy changes our fate. Allah (SWT) says in the Noble Qur'an
that: "Allah removes what He wishes and establishes what He wishes,
for He has the Mother of Books."
Noble Quran (13:39)