Abu Dharr (May Allah be pleased with him) reported: Messenger of Allah (PBUH) commanded me thus, "O Abu Dharr! Whenever you prepare a broth, put plenty of water in it, and and give some of it to your neighbours".[Muslim].
In another narration of Muslim, narrated Abu Dharr (May Allah be pleased with him): My friend, (Messenger of Allah (PBUH)) advised me saying, "Whenever you prepare a broth, put plenty of water in it, and give some to your neighbours and then give them out of this with courtesy."
This Hadith makes it clear that Islam does not like a Muslim to ignore his poor neighbour and eat up everything himself. It stresses that one must take care of his poor neighbours. If a person is not in a position to do more, he should at least add some water in the broth he cooks for his own food and send a portion of it to his deserving neighbour. It leads us to the conclusion that a Muslim should in no case be unmindful of his neighbour and if he is well-to-do, he should be all the more charitable to his neighbours.