﴿ وَمَا كَانَ قَوْلَهُمْ إِلَّآ أَن قَالُوا۟ رَبَّنَا ٱغْفِرْ لَنَا ذُنُوبَنَا وَإِسْرَافَنَا فِىٓ أَمْرِنَا وَثَبِّتْ أَقْدَامَنَا وَٱنصُرْنَا عَلَى ٱلْقَوْمِ ٱلْكَٰفِرِينَ ﴾

“and all that they said was this: "O our Sustainer! Forgive us our sins and the lack of moderation in our doings! And make firm our steps, and succour us against people who deny the truth!" -”

(Their cry) the cry of the believers after the killing of their prophet (was only that they said: Our Lord) O our Lord! (Forgive us for our sins) sins other than the enormities (and wasted efforts) by committing grave sins, i.e. enormities, (make our foothold sure) in war, (and give us victory over the disbelieving folk).