An taqooloo innammaaa unzilal Kitaabu 'alaa taaa'ifataini min qablinaa wa in kunnaa 'an diraasatihim laghaafileen
[We revealed it] lest you say, "The Scripture was only sent down to two groups before us, but we were of their study unaware,"
1 Mufti Taqi Usmani
(Had We not sent this book,) you would (have an excuse to) say, “The Book was sent down only upon two groups before us, (i.e. the Jews and the Christians) and we were unaware of what they read.”