Surah 9. Al-Tawba, Ayah 90

I.e., from participating in the expedition to Tabuk. The term al-mu'adhdhirun connotes both "those having a valid excuse ('udhr)" and "those offering false excuses"; it is, therefore, best rendered as "such as had some excuse to offer". The specific mention of the a'rab ("bedouin") in this and the following passages probably arises from the fact that their attitude - positive or negative - towards Islam was of the greatest importance within the context of early Muslim history, inasmuch as the message of Muhammad could not obtain a real, lasting foothold in Arabia without first securing the allegiance of those warlike nomads and half-nomads, who constituted the great majority of the Peninsula's population. At the time when the Prophet was preparing to set out towards Tabuk, many of the already-converted tribesmen were willing to go to war under his leadership (and, in fact, did so), while others were afraid lest in their absence their encampments, denuded of man-power, be raided by hostile, as yet unconverted tribes (Razi); others, again, were simply averse to exposing themselves to the hardships of a campaign in distant lands, which did not seem to them to have any bearing on their own, immediate interests.

I.e., without even caring to come to Medina and to excuse themselves.

Not only had the Hypocrites a nest in Madinah, but their tactics affected some of the village or desert Bedouins, who loved war and would have followed a standard of war even if no question of Faith or a sacred Cause was involved. But some of them, though professing Islam, were frightened by the hardships of the Tabuk expedition and the prospect of meeting the trained armies of the great Roman (Byzantine) Empire. They made all sorts of lying excuses, but really their want of faith made them ineligible for being enlisted in a sacred Cause, in the terms of ix. 46-47 and ix. 53-54. Some came to make excuses: other did not even come , but sat at home, ignoring the summons.