被迫转入地下的穆兄会通过定位于穷人需求的社会日程赢得了支持，同时它也在不断加强其伊斯兰教关系，不惜通过强制性的“天课 ” （ 每年向宗教事务的财务捐赠）建立起社会网络。
Forced to operate clandestinely, the Brotherhood built its support base with a social agenda that targeted the needs of the poor, while consistently reinforcing its Islamic ties, even using the compulsory zakat (annual financial contribution to religious causes) to build up its social network.