Fiqh-us-Sunnah Volume 3, Zakaat and Fasting, Fiqh 3.063B.
Section : Reconcilation of hearts:.
This applies primarily to that group of people whose hearts, due to their weak Islam, need to be reconciled or strengthened for Islam. In this case, zakah is distributed to rid Muslims of their evil, or to procure their assistance in the defence of Muslims. The jurists divide such people into Muslims and unbelievers. The Muslims are divided into four groups: