Hawzah News Agency – Imam Zayn al-Abidin peace be upon him says:

مَن كَفَّ عَن أعراضِ المُسلِمينَ أقالَهُ اللَّهُ عَزَّوجلَّ عَثرَتَهُ يَومَ القِيامَةِ.

‘He who refrains from tarnishing fellow Muslims’ reputations, Allah, Mighty and Exalted, regards his offence as undone on the Day of Resurrection.’

Source: Sahifat al-Imam al-Rida (AS), p. 85, no. 195