(Ambiya') 21 : 57
وَتَاللَّهِ لَأَكِيدَنَّ أَصْنَامَكُمْ بَعْدَ أَنْ تُوَلُّوا مُدْبِرِينَ

“And I swear with Lord Allah; surely I will plan against your idols after you have returned from here".