Narrated 'Abdullah bin Umar(RA): Allah's Apostle said, "A Muslim is a brother of another Muslim, so he should not oppress him, nor should he hand him over to an oppressor. Whoever fulfilled the needs of his brother, Allah will fulfill his needs; whoever brought his (Muslim) brother out of a discomfort, Allah will bring him out of the discomforts on the Day of Resurrection, and whoever screened a Muslim, Allah will screen him on the Day of Resurrection. “[Bukhari& Muslim Shareef]

Hazrat Abdullah Bin Umar(RA)  and Hazrat Abu Huraira (RA) both narrate that Prophet Muhammad(PBUH)  said, “The person who headed for his (Muslim) brother’s work and till the time that he completes it, Allah shades him with 5000 (and at some places it is mentioned 75,000) angels. They pray and send blessings for him till night if it’s a day or till morning if its night. Each step which he takes is rewarded with a kind deed and for each step he takes to resolve his brother’s misery, Allah forgives one sin.” [Behki and Tibrani]

Hazrat Abdullah Bin Umar(RA)  narrates that Prophet Muhammad(PBUH)  said, “Allah has made one such creation whom He has created to fulfill other’s needs. People run towards them for their needs. These are the people who shall stay safe from Allah’s torment.” [Tibrani]