Allah helps those who help others

It was related on the authority of Abu Huraira (R.A), that the Prophet (P.B.U.H) said: "Whosoever removes a worldly grief from a believer, Allah will remove from him one of the griefs of the Day of Judgment. Whosoever alleviates [the lot of] a needy person, Allah will alleviate [his lot] in this world and the next. Whosoever shields a Muslim, Allah will shield him in this world and the next. Allah will aid a slave [of His] so long as the slave aids his brother. Whosoever follows a path to seek knowledge therein, Allah will make easy for him a path to Paradise. No people gather together in one of the houses of Allah, reciting the Book of Allah and studying it among themselves, but tranquility and peace descends upon them, mercy envelopes them, the angels surround them, Allah makes mention of them amongst those who are with Him.And whosoever is slowed down by his actions will not be hastened forward by his lineage."
[Muslim]

Click here for an over view of this hadith