How this verse is related to other previous verses...
How this verse is related to other previous verses, some commentators, including the deceased Tabarsi in Majma‘ul-Bayan and the writer of Fi Zilal, have said that because the previous verses talked about the way of association with friends and relatives, the current verse talks about the way of Muslims’ association with their leader and puts emphasis on observing regulations before him so that they obey him in every thing, and, even in many important affairs, without his permission they should not leave the group.
Another probability is that: in some former verses the necessity of obeying Allah and the Prophet (S) was mentioned and one of its conditions was that without his permission Muslims should not do anything, therefore, the verse under discussion talks about this matter.
Anyway, in the beginning of the verse it says: “Only these are the (true) believers who believe in Allah and His messenger and, when they are with him on a matter requiring collective action, they go not away until they have asked leave of him...” The purpose of the Qur’anic phrase: /’amrin jami‘/ (some common errand) is any important affair that necessities gathering of people and their cooperation and help, whether this issue is a crucial matter of consultation or a matter of holy war and fighting with foe, or Friday prayer in very critical conditions, and such like.
Therefore, if we see that some commentators interpreted it as consultation about holy war or Friday prayer and feast prayer, we must say that they have referred to some part of the meaning of the verse, and the previous occasions of revelation are the extensions of this general ordinance.
This is in fact a disciplinary order or command that no united group or society can ignore it, because in such conditions, the absence of one person can cost a bomb and harms the ultimate aim, especially when the chief of the group is Allah’s messenger and a sagacious, influential spiritual leader.
Paying attention to this matter is important that the purpose of taking permission is not that everyone takes permission superficially and goes after his own job, but he must really take permission; that is, if the leader sees that his absence is insignificant, he permits him to go, otherwise, he must not go and sometimes he must forfeit his personal and private job to a more important aim.