61:3

As-Saff 61:3

كَبُرَ مَقْتًا عِندَ ٱللَّهِ أَن تَقُولُوا۟ مَا لَا تَفْعَلُونَ

Kabura maqtan 'indal laahi an taqooloo maa laa taf'aloon

It is most loathsome in the sight of Allah that you should profess what you do not practise.