It is narrated from Hazrat Mu'adh (may Allah be pleased with him) that once I was riding behind the Noble Prophet (peace and blessings be upon him) on a donkey. Only the back part of the saddle was between me and the Noble Prophet (peace and blessings be upon him). The Noble Prophet (peace and blessings be upon him) called me by name and said, "O Mu'adh! Do you know what right Allah has over His servants?" I replied, "Allah and His Messenger know best." The Noble Prophet (peace and blessings be upon him) said, "(Allah's right over His servants is) that they worship Him alone and do not associate anything with Him." Then the Noble Prophet (peace and blessings be upon him) said, "Do you know what right the servants have over Allah if they do so?" The Noble Prophet (peace and blessings be upon him) said, "That right is that Allah will not punish them."