Sunan an Nasai
3433
Sahih+2

It was narrated from Abu Hurairah that -(one of the narrators) 'Abdur-Rahman said:"The Messenger of Allah -said: 'Allah, the Most High, has forgiven my Ummah for everything that enters the mind, so long as it is not spoken of or put into action

SahihAbu Ghuddah
SahihAl-Albani