﴿ 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!””

Please check ayah 26:159 for complete tafsir.