This hadith is mentioned in Khasais al Nisai in more detail. These narrations show special love for Imam Ali, the Holy Prophet prayed O Allah send to me your most beloved person from your creation, the Holy Prophet did not allow Abu Bakar and Omar, the holy Prophet allowed only Imam Ali. This is true narration in Sunni sources.
Sayyidina Anas ibn Maalik (RA) reported that the Prophet (SAW) had bird meat once. He said, “0 Allah, send to me from Your creatures one who is dearest to You that he may eat with me this bird. So, Ali came to him and ate with him.
Here is another narration
Sayyidina Ali (RA) narrated: Indeed, the Prophet (SAW) the unlettered Prophet asserted to me, “None will love you except a believer and none will despise you but a hypocrite.” Adi ibn Thabit said, “I belong to the generation for whom the Prophet (SAW) prayed.”