Imam Husain b. Ali (a.s.) narrates on the authority of his father Imam Ali b. Abi Talib (a.s.), ‘After Allah’s Prophet (s.a.w.a.) recited the following verse – Not alike are the Inmates of the Fire and the Dwellers of the Garden; the Dwellers of the Garden are the achievers (Surah Hashr (59): 20) he (s.a.w.a.) informed, ‘The Dwellers of the Garden are those who obey me, and submit to Ali b. Abi Talib (a.s.) after me. The Inmates of the Fire are those who reject his leadership, are jealous of him, break their covenants and fight with him after me.’
Oyoon Akhbaar al-Reza (a.s.) chap 28 trad 22