Oman ibn-Khattab narrates that the Messenger of Allah (ص) said:
"Love for Ali is the source of one’s release from the fire of Hell"
Dailami, Ferdaus al-Akhbar, V. 2, page 226; Ibn Jabr, Nahj al-Iman, page 452; Qunduzi, Yanabi al-Muwadda, V.2, page 75.