Ibn Abbas narrated from the Prophet (P.B.U.H&H.P):
When the verse “Those who believe and do righteous deeds are the best of the creation” (Quran 98:7) was revealed, the Messenger of Allah (P.B.U.H&H.P) said to Ali (A.S): "They are you and your Shia." He continued: "O Ali! (On the Day of Judgment) you and your Shia will come toward Allah well-pleased and well-pleasing, and your enemies will come angry with their head forced up. Ali(A.S) said: "Who are my enemies?" The Prophet (P.B.U.H&H.P) replied: "He who disassociates himself from you and curses you. And glad tiding to those who reach first under the shadow of al-'Arsh on the day of resurrection." Ali (A.S) asked: "Who are they, O the Messenger of Allah?" He replied: “Your Shia, O Ali, and those who love you.”
Sunni references:
- Al-Hafidh Jamaluddin al-Dharandi, on the authority of Ibn Abbas.
- Al-Sawa’iq al-Muhriqah, by Ibn Hajar, Ch. 11, section 1, pp 246-247.
source : sibtayn