Wa jaaa'al mu'az ziroona minal A'raabi liyu'zana lahum wa qa'adal lazeena kazabul laaha wa Rasoolah; sayuseebul lazeena kafaroo minhum 'azaabun aleem
Many of the bedouin Arabs came with excuses, seeking leave to stay behind. Thus those who were false to Allah and His Messenger in their covenant remained behind. A painful chastisement shall befall those of them that disbelieved.
