The Cow - 2:44
Do you forget yourselves when you call the people to do good, and you read the Book, and do you not use your minds?
Do not say what you will not do:
The Ranks/61:2
O you who believe, why do you say what you have not done or will not do?
The Ranks/61:3
Saying what you do not do is one of the most disliked acts in the sight of Allah.
The Poets/26:225
Do you not see them running in every valley?
The Poets/26:226
And they say what they do not do.
The Family Of Imran/3:188
Do not think that those who are proud of what they have given and love to be praised for what they have not done, do not think that they will escape the torment. For them is a painful torment.