Surah As-Saf (The Solid Ranks), Verse 2

یٰۤاَیُّهَا الَّذِیْنَ اٰمَنُوْا لِمَ تَقُوْلُوْنَ مَا لَا تَفْعَلُوْنَ ۟

Yaa ayyuhal lazeena aamanoo lima taqooloona maa laa taf'aloon

“O ye who believe! Why say ye that which ye do not?”

Quran 61:2 (Yusuf Ali Translation)