143. When, after revelation from God, the Prophet (peace be on him) delivered his verdict in favour of the innocent Jew rather than the dishonest Muslim, the latter was so seized by un-Islamic, egotistic and chauvinistic considerations that he left Madina, went straight to Makka to join the ranks of the enemies of Islam and of the Prophet (peace be on him), and undertook open opposition. The verse alludes to that incident.