Hadith of interest to Shias

Saheeh Bukhari Hadith 45

Once a Jewish man said to 'Umar ibn al-Khattab, "Amir al-Mu'minin! There is an ayat you recite in your book which, had it been sent down to us Jews, we would have appointed that day a festival." He asked, "What is this ayat?" The Jew replied, "Today I have perfected your deen for you and completed My blessing upon you and chosen Islam for you as a religion." (5:3) 'Umar said, "We know the time and place it was revealed to the Prophet, may Allah bless him and grant him peace. He was standing at 'Arafa on a Friday."

Indeed Shias celebrate that as Eid-e-Ghadeer