Ash'ath narrates from al-Hasan (may Allah have mercy on him) that a man lost his she-camel and made a claim for it against another man, and he brought him to the Prophet (peace and blessings be upon him). He said: This man has taken my she-camel. The man swore by Allah that he had not taken his she-camel. He (peace and blessings be upon him) said: "You did take it; return it to him." So he returned it, and the Prophet (peace and blessings be upon him) said: "Allah has forgiven you because of your sincerity."
Explanation: This report is munqati' (its chain is broken). If it is authentic in origin, its purpose is to show that, when one's creed is sound, no sin, even a grave one, makes Hell binding; but no one other than the Prophet (peace and blessings be upon him) can make this determination.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأيمان / 19880