Anas narrates that the Messenger of Allah (ص) said:
"Ali ibn Abi Talib will shine in Heaven just as the morning star shines for the people of this world"
Dailami, Firduas Al-Akhbar, V.3, page 90; Ibn Hajar Haitami, Al-Sawa’iq al-Muhriqah, page 125; Munawi, Faiz al-Qadir, V.4, page 472; Ibn Hajar al-Asqalani, Zahr al-Firdaus, V.2, page 315; Suyuti, Al-Jami' as-Saghir, V.2, page 178; Muttaki Hindi, Kanz al-Ummal, V. 11, page 604, 611; Qunduzi, Yanabi al-Muwadda, V.2, page 241.