﴿ وَيَقُولُونَ ءَامَنَّا بِٱللَّهِ وَبِٱلرَّسُولِ وَأَطَعْنَا ثُمَّ يَتَوَلَّىٰ فَرِيقٌۭ مِّنْهُم مِّنۢ بَعْدِ ذَٰلِكَ ۚ وَمَآ أُو۟لَٰٓئِكَ بِٱلْمُؤْمِنِينَ ﴾

“For, [many are] they [who] say, “We believe in God and in the Apostle, and we pay heed!” - but then, some of them turn away after this [assertion]: and these are by no means [true] believers.”

While the Prophet was in Madinah, there was a group which had apparently accepted Islam, but which was not really sincere about religion. This group was called the hypocrites (munafiqun). These people mouthed their obedience to God and His Prophet, but in practice, at the time of need, their actions would belie their pretensions. At that time, due to prevailing circumstances, a regular Islamic Court had not yet been established. The Jewish chiefs had been deciding cases as a matter of convention for centuries. But now the Prophet Muhammad had migrated to Madinah and established himself there. It was typical of the half-hearted hypocritical Muslims to agree to have their disputes (with other Muslims) settled by the Prophet Muhammad, provided they were sure that it would be decided in their favour. But when it seemed that the outcome might be unfavourable to them, these hypocrites (munafiqun) preferred going to a Jewish chief to have the matter decided. To all appearances this was an act of great cleverness, but in actuality they were just wronging themselves. Such apparent winners shall have lost their case even before reaching the court of God.