As-Saf 61:2
يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لِمَ تَقُولُونَ مَا لَا تَفْعَلُونَ
Ya ayyuha allatheena amanoolima taqooloona ma la tafAAaloon
"O you who have believed, why do you say what you do not do?"
As-Saf 61:2, translation by Sahih International
A short reflection
O you who believe, why do you say what you do not do? It is most hateful in the sight of Allah that you say what you do not do.