TrinityCore/sql/updates/0.7/3845_command.sql

INSERT INTO `command` VALUES('mute',1,'Syntax: .mute $playerName $timeInMinutes\r\n\r\nDisible chat messaging for any character from account of character $playerName at $timeInMinutes minutes.');
INSERT INTO `command` VALUES('unmute',1,'Syntax: .unmute $playerName\r\n\r\nRestore chat messaging for any character from account of character $playerName.');