Had it been a near advantage and a short journey, they would certainly have followed you, but the tedious journey was too long for them; and they swear by Allah: If we had been able, we would certainly have gone forth with you; they cause their own souls to perish, and Allah knows that they are most surely

And they say: We believe in Allah and in the messenger and we obey; then a party of them turn back after this, and these are not believers.