﴿ وَأَنَّهُۥ لَمَّا قَامَ عَبْدُ ٱللَّهِ يَدْعُوهُ كَادُوا۟ يَكُونُونَ عَلَيْهِ لِبَدًۭا ﴾

“Yet [thus it is] that whenever a servant of God stands up in prayer to Him, they [who are bent on denying the truth] would gladly overwhelm him with their crowds.”

Please check ayah 72:24 for complete tafsir.