﴿ يَحْلِفُونَ بِٱللَّهِ لَكُمْ لِيُرْضُوكُمْ وَٱللَّهُ وَرَسُولُهُۥٓ أَحَقُّ أَن يُرْضُوهُ إِن كَانُوا۟ مُؤْمِنِينَ ﴾

“[The hypocrites] swear to you by God [that they are acting in good faith], with a view to pleasing you [O believers] - the while it is God and His Apostle whose pleasure they should seek above all else, if indeed they are believers!”

(They swear by Allah to you (Muslims) to please you) about not joining you in the military expedition, (but Allah, with His messenger, hath more right that they should please Him if they are believers) if they were sincere in their faith.