Al-An'am 6:33

Qad naAAlamu innahu layahzunuka allatheeyaqooloona fa-innahum la yukaththiboonaka walakinnaaththalimeena bi-ayatiAllahi yajhadoon

We know that you, [O Muḥammad], are saddened by what they say. And indeed, they do not call you untruthful, but it is the verses of Allāh that the wrongdoers reject.

Indeed We know that what they say makes you sad, because it is not you whom they reject, but the transgressors actually deny the signs of Allah.