23. " have you not seen those who have been given a portion of the book ?
they are invited to the book of allah that it may judge between them,
then a group of them turn back, while they are opponent ".

commentary:
in the commentary books of both schools of shi'ite and sunnite, it
is cited that: it happened that a woman and a man from the jews
committed adultery while they had spouses. as the torah had ordained,
they should be palted with stone, but since those two were among the
notables, they tried to flee from the execution of the torah's
instruction. so, they came to the prophet of islam (p.b.u.h.) in order
that he judeged. he (p.b.u.h.) also commanded to stoning, and said that
the law of islam in this regard is similar to that of the torah. but they
denied the torah's ordain. ibn-suriya, who was one the jewish scholars,
was summoned from fadak to medina in order to recite the torah
concerning the matter. since he was aware of the subject, when reciting
the verses of the torah, he put his hand on the phrases related to the
subject of stoning so that the verse of stoning could not be seen.
`abdillah-ibn-salam, who was among the jewish scholars at that time,
was present in that meeting. he recognized the situation and made the
matter manifest.

explanations
1. heedlessness of the followers of a religion to their own
religious book, is the beginning of the calamity.

" have you not seen those who have been given a portion of the book?..."

2. allah's ordinances should be executed about all individuals for
the same matter with no difference.

"... they are invited to the book of allah that it may judge between them,
then a group of them turn back, while they are opponent".

3. mere claim is not an indication of faith.

4. this meaning is a warning to the muslims that they should not
treat like the jews when executing the laws of the qur'an, and that they
would be careful not to turn away from the commandments of the lord.