Narrated Abu Huraira
The Prophet (ﷺ) said, "Allah has accepted my invocation to forgive what whispers in the hearts of my followers, unless they put it to action or utter it." (See Hadith No. 657 Vol. 8)
Narrated `Umar bin Al-Khattab
The Prophet (ﷺ) said, "The (reward of) deeds depend on intentions, and every person will get the reward according to what he intends. So, whoever migrated for Allah and His Apostle, then his migration will be for Allah and His Apostle, and whoever migrated for worldly benefits or for marrying a woman, then his migration will be for what he migrated for." (See Hadith No. 1, Vol. 1)