Hadith 7
Sayyiduna Salman al-Farsi (may Allah be pleased with him) says, the Messenger of Allah (peace and blessings be upon him) said: "One sin is not forgiven, and one sin is not left, and one sin is forgiven. The sin that is not forgiven is associating partners with Allah, and the sin that is not left is the injustice of people to one another, and the sin that is forgiven is the servant's shortcomings in the rights of Allah."