Fussilat 41:45

We gave Moses the Scripture, but differences arose concerning it. Were it not for a prior decree[20] from your Lord, it would have been judged between them. Surely they are in a disquieting doubt about it.

[20] That Allah will delay their judgment until Judgment Day.

And We had already given Moses the Scripture, but it came under disagreement.[1399] And if not for a word [i.e., decree][1400] that preceded from your Lord, it would have been concluded between them. And indeed they are, concerning it [i.e., the Qur’ān], in disquieting doubt.

[1399] An alternative meaning is "he was opposed over it."
[1400] See footnote to 10:19.

45. And indeed We gave Mûsâ (Moses) the Scripture, but dispute arose therein. And had it not been for a Word that went forth before from your Lord, (the torment would have overtaken them) and the matter would have been settled between them. But truly, they are in grave doubt thereto (i.e. about the Qur’ân). [Tafsir Al-Qurtubi].

And We verily gave Moses the Scripture, but there hath been dispute concerning it; and but for a Word that had already gone forth from thy Lord, it would ere now have been judged between them; but lo! they are in hopeless doubt concerning it.