كَبُرَ مَقْتًا عِندَ ٱللَّهِ أَن تَقُولُوا مَا لَا تَفْعَلُونَ

Kabura maqtan AAinda Allahi antaqooloo ma la tafAAaloon

Greatly hateful in the sight of Allāh is that you say what you do not do.