Sahih al-Bukhari Book 49, Hadith 13
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)
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)
When Abu Huraira accompanied by his slave set out intending to embrace Islam they lost each other on the way. The slave then came while Abu Huraira was sitting with the Prophet. The Prophet (ﷺ) said, "O Abu Huraira! Your slave has come back." Abu Huraira said, "Indeed, I would like you to witness that I have manumitted him." That happened at the time when Abu Huraira recited (the following poetic verse):-- 'What a long tedious tiresome night! Nevertheless, it has delivered us From the land of Kufr (disbelief).