La taj'aloo du'aaa'ar Rasooli bainakum kadu'aaa'i badikum ba'daa; qad ya'lamul laahul lazeena yatasallaloona minkum liwaazaa; fal yahzaril lazeena yukhaalifoona 'an amriheee an tuseebahum fitnatun aw yuseebahum 'azaabun aleem
Deem not the summons of the Messenger among yourselves like the summons of one of you to another: Allah doth know those of you who slip away under shelter of some excuse: then let those beware who withstand the Messenger's order, lest some trial befall them, or a grievous penalty be inflicted on them.