Al-Baqarah Verse 101

Now, when a messenger from Allah has come to them—confirming their own Scriptures—some of the People of the Book cast the Book of Allah behind their backs as if they did not know.

And when a messenger from Allah came to them – confirming what was with them, a party of the People of the Book cast Allah’s Scripture behind their backs as if they did not know.

When there has come to them a Messenger from God confirming what was with them, a party of them that were given the Book reject the Book of God behind their backs, as though they knew not,

When God sent them a messenger confirming the Scriptures they already had, some of those who had received the Scripture before threw the Book of God over their shoulders as if they had no knowledge,

And whenever there came unto them an apostle from Allah confessing to that which was with them, a Party among those who were vouchsafed the Book, cast Allah's Book behind their backs as though they knew not.

And when there came to them a messenger from Allah, confirming what was with them, a party of the people of the Book threw away the Book of Allah behind their backs, as if (it had been something) they did not know!

And whenever a Messenger came to them from Allah, confirming that Scripture which they already possessed, some from among the people of the Book threw the Book of Allah behind their backs as though they knew nothing about it.

When a messenger was sent to them by God affirming the Books they had already received, some of them put (His message) behind their backs as if they had no knowledge of it.

And when a Noble Messenger from Allah came to them, confirming the Book(s) which they possessed, a group of those who have received the Book(s) flung the Book of Allah behind their backs as if they were totally unaware!

And when there came to them an apostle from Allah, confirming that which is with them, a part of those who were given the Book cast the Book of Allah behind their back, as if they did not know [that it is Allah’s Book].

(This is not all.) When (finally) there has come to them a Messenger from God, confirming what (of the truth) they already possess, a party of those who were given the Book (the Torah) have (instead of paying heed to what it contains concerning the Last Messenger) flung the Book of God (the Qur’an) behind their backs, as if they did not know (that it is a Book from God and that the Messenger who has brought it is the Last Prophet they have been anticipating.)

And (now) when a great Messenger (Muhammad) has come to them from Allâh confirming that (Scripture) which is with them, a party of those who were given the Scripture cast away the Book of Allâh behind their backs, as if they know (it) not.

And when a messenger came to them from at God confirming to what (is) with them, a group from those who were given The Book , discarded/rejected God`s Book behind their backs, as if they do not know.

And when a Noble Messenger from Allah came to them, confirming the Book(s) which they possessed, a group of those who have received the Book(s) flung the Book of Allah behind their backs as if they were totally unaware!

And when there comes to them an apostle confirming what they have, a party of those who have received the Book repudiate Allah´s book, casting it behind their backs as though they did not know.

And when there came to them a Messenger from Allah (i.e. Muhammad Peace be upon him) confirming what was with them, a party of those who were given the Scripture threw away the Book of Allah behind their backs as if they did not know!

And when there came to them a messenger from Allah verifying that which they have, party of those who were given the Book threw the Book of Allah behind their backs as if they knew nothing.

And when there came to them an Apostle from Allah verifying that which they have, a party of those who were given the Book threw the Book of Allah behind their backs as if they knew nothing.

And when there cometh unto them a messenger from Allah, confirming that which they possess, a party of those who have received the Scripture fling the Scripture of Allah behind their backs as if they knew not,

When a Messenger of God came to them confirming the (original) revelation that they already had received, a group of those who had the Scripture with them, threw the Book of God behind their backs as if they did not know anything about it.

And now that a Messenger has come to them from Allah confirming what was with them, some of those to whom the Book was given reject the Book of Allah behind their backs, as though they knew nothing

And when there came to them a Messenger from Allah (i.e. Muhammad) confirming what was with them, a party of those who were given the Scripture threw away the Book of Allah behind their backs as if they did not know!

Whenever a messenger from God has come to them, fulfilling that [predictions] which they already had, some of those to whom the Book was given have cast off the Book of God behind their backs as if they had no knowledge.

And when there came to them a messenger from God, confirming what they had, a faction of those who were given the Book threw the Book of God behind their backs, as if they do not know.

When there came to them a messenger from God, namely, Muhammad (s), confirming what was with them, a party of them who were given the Scripture have cast away the Scripture of God, that is, the Torah, behind their backs, that is to say, they have not acted according to what it said about belief in the Messenger and otherwise; as though they did not know, what is contained in it, to the effect that he is a true Prophet, or that it is the Book of God.

And when there came to them a Messenger from Allah (i.e. Muhammad) confirming what was with them, a party of those who were given the Scripture threw away the Book of Allah behind their backs as if they did not know!

As-Suddi commented on,
وَلَمَّا جَاءهُمْ رَسُولٌ مِّنْ عِندِ اللّهِ مُصَدِّقٌ لِّمَا مَعَهُمْ
(And when there came to them a Messenger from Allah (i.e. Muhammad) confirming what was with them),

"When Muhammad came to them, they wanted to contradict and dispute with him using the Tawrah. However, the Tawrah and the Qur'an affirmed each other. So the Jews gave up on using the Torah, and took to the Book of Asaf, and the magic of Harut and Marut, which indeed did not conform to the Qur'an.

Hence Allah's statement,
كَأَنَّهُمْ لَا يَعْلَمُونَ
(As if they did not know!)."

Also, Qatadah said that Allah's statement,
كَأَنَّهُمْ لَا يَعْلَمُونَ
(As if they did not know!) means,

"They knew the truth but abandoned it, hid it and denied the fact that they even had it."
Magic existed before Suleiman (Solomon)

Allah tells;