﴿ مَآ أَنتَ إِلَّا بَشَرٌۭ مِّثْلُنَا فَأْتِ بِـَٔايَةٍ إِن كُنتَ مِنَ ٱلصَّٰدِقِينَ ﴾

“Thou art nothing but a mortal like our­selves! Come, then, forward with a token [of thy mission] if thou art a man of truth!””

And moreover you are just a human being like us. So bring us a sign if you are sincere’ in your Mission.