﴿ ۞ وَإِذَا وَقَعَ ٱلْقَوْلُ عَلَيْهِمْ أَخْرَجْنَا لَهُمْ دَآبَّةًۭ مِّنَ ٱلْأَرْضِ تُكَلِّمُهُمْ أَنَّ ٱلنَّاسَ كَانُوا۟ بِـَٔايَٰتِنَا لَا يُوقِنُونَ ﴾

“Now, [as for the deaf and blind of heart –] when the word [of truth] stands revealed against them, We shall bring forth unto them out of the earth a creature, which will tell them that mankind had no real faith in Our messages.”

(And when the word) bringing curse and torment upon them (is fulfilled concerning them, We shall bring forth a beast of the earth) between the Safa and al-Marwah, and this is the staff of Moses; it is also said that this beast will come with the staff of Moses (to speak unto them because mankind had not faith) they did not believe (in Our revelations) i.e. in Muhammad (pbuh) and the Qur'an; and it is also said that this means: they did not believe in the advent of the beast.