Bedouins

The desert Arabs are the worst in disbelief and hypocrisy, least likely to understand the limits of what Allah has revealed to His Messenger.

9:97The wandering Arabs are more hard in disbelief and hypocrisy, and more likely to be ignorant of the limits which Allah hath revealed unto His messenger. And Allah is Knower, Wise.

Some desert Arabs consider what they spend as a burden and wait for misfortune to strike you.

9:98And of the wandering Arabs there is he who taketh that which he expendeth (for the cause of Allah) as a loss, and awaiteth (evil) turns of fortune for you (that he may be rid of it). The evil turn of fortune will be theirs. Allah is Hearer, Knower.

Among the desert Arabs around you are hypocrites, and so are some among the people of Medina. They persist in hypocrisy, you do not know them, but We do.

9:101And among those around you of the wandering Arabs there are hypocrites, and among the townspeople of Al-Madinah (there are some who) persist in hypocrisy whom thou (O Muhammad) knowest not. We, We know them, and We shall chastise them twice; then they will be relegated to a painful doom.

The Bedouins said, “We believe.” Say: You have not yet believed. Rather, say, “We have submitted,” for faith has not yet entered your hearts.

49:14The wandering Arabs say: We believe. Say (unto them, O Muhammad): Ye believe not, but rather say "We submit," for the faith hath not yet entered into your hearts. Yet, if ye obey Allah and His messenger, He will not withhold from you aught of (the reward of) your deeds. Lo! Allah is Forgiving, Merciful.

Say: Are you teaching Allah about your faith, when Allah knows all that is in the heavens and the earth?

49:16Say (unto them, O Muhammad): Would ye teach Allah your religion, when Allah knoweth all that is in the heavens and all that is in the earth, and Allah is Aware of all things?