Noble Messenger of Allah (s.a.w.) said:
"Never does he believe in me who goes to bed full while his neighbour is hungry.
Never shall Allah on the Day of Judgement look with favour at the people of a place who
pass their night satisfied but among them is a hungry one."
Also The Holy Quran
It is He who has sent to the unlettered
people an apostle from among themselves, reciting to them and teaching them the Book and
wisdom, although they were before in manifest error. (Qur'an, 62:2)
al-Sadiq (a.s.) said:
"The right of the Muslim on the Muslim
is that he should never eat his fill while his brother suffers, never should be quench his
thirst while his brother suffers thirst, never should he clothe himself while his brother
suffers inadequate clothing."