Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) narrates that we were with the Messenger of Allah (peace and blessings be upon him) when a very foul-smelling wind began to blow and it became intense. The Prophet (peace and blessings be upon him) said: "Do you know what this is? This is the stench of those who backbite the believers." In another narration, it is stated that some hypocrites backbit some Muslims, and this wind was sent because of that.