بَلْ ظَنَنتُمْ أَن لَّن يَنقَلِبَ الرَّسُولُ وَالْمُوْمِنُونَ إِلَى أَهْلِيهِمْ أَبَدًاNay, but you thought that the Messenger and the believers would never return to their families,`for your lagging behind was not an excusable act or just a sin. Rather, your lagging behind was because of hypocrisy and because you thought that the Muslims would be killed to the extent of extermination, their lives would be extinguished and none of them will ever come back,'وَزُيِّنَ ذَلِكَ فِي قُلُوبِكُمْand that was made fair seeming in your hearts,وَظَنَنتُمْ ظَنَّ السَّوْءِ وَكُنتُمْ قَوْمًا بُورًاand you did think an evil thought and you became a people Bur. (going for destruction),according to Abdullah bin Abbas, Mujahid and several others.Qatadah explained Bur to mean, corrupt and some said that it is a word used in the Arabic dialect of the area of Oman.Allah the Exalted then said