Word by Word Analysis

وَلَوْ أَنَّهُمْ رَضُوا۟ مَآ ءَاتَىٰهُمُ ٱللَّهُ وَرَسُولُهُۥ وَقَالُوا۟ حَسْبُنَا ٱللَّهُ سَيُؤْتِينَا ٱللَّهُ مِن فَضْلِهِۦ وَرَسُولُهُۥٓ إِنَّآ إِلَى ٱللَّهِ رَٰغِبُونَ 59

If only they had been satisfied with what Allāh and His Messenger gave them and said, "Sufficient for us is Allāh; Allāh will give us of His bounty, and [so will] His Messenger; indeed, we are desirous toward Allāh," [it would have been better for them].