Hawzah News Agency – the merciful prophet of Islam says:
أمّا علَامةُ الخائنِ فأربَعةٌ: عِصْيانُ الرّحمانِ، وأذى الجِيرانِ، وبُغْضُ الأقْرانِ، والقُرْبُ إلى الطُّغْيانِ.
'As for the signs of the betrayer, there are four: disobedience to the All-Beneficent, disturbance to neighbours, loathing his associates, and being close to tyranny and oppression.'
Source: Tuhaf al-Uqul, no. 22