Shaykh Muhammad bin Sālih Al-‘Uthaymīn رحمه الله said:

“Know that if you (unjustly) spread the faults of your brother Allāh will place over you one who will spread your faults as a full recompense (for the wrong you have done).”

[ﺗﻔﺴﻴﺮ ﺳﻮﺭﺓ ﺍﻟﺤﺠﺮﺍﺕ ( ٥٢/١ )]