"All the sins of my followers will be forgiven except those which are
disclosed to the people. For example a person commits a sin at night
and though Allah screens it from the public, in the morning he says.
"O so-and-so, I did such-and-such evil deed"
Sahih Bukhari Hadith No. 980 Book 78, Chapter 60 Narrated by Ibn Umar (r.a.)