Tariq bin Shihab reported,

The Jews said to Umar, "You recite a verse which, had it been revealed to us, we would have taken its day as a festival."Umar replied, "I know exactly when it was revealed, where it was revealed, and where the Messenger of Allah ﷺ was when it was revealed. It was revealed on the Day of Arafah, and by Allah, we were at Arafah."Sufyan said, "I am uncertain whether it was a Friday or not." The verse is, "This day I have perfected for you your religion" [Maidah 5:3].

Bukhari 4606

Sahih

حدثني محمد بن بشار حدثنا عبد الرحمن حدثنا سفيان عن قيس

عن طارق بن شهاب قالت

اليهود لعمر إنكم تقرءون آية لو نزلت فينا لاتخذناها عيدا فقال عمر إني لأعلم حيث أنزلت وأين أنزلت وأين رسول الله ﷺ حين أنزلت يوم عرفة وإنا والله بعرفة قال سفيان وأشك كان يوم الجمعة أم لا {اليوم أكملت لكم دينكم}

البخاري 4606صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Tafsir
Chapter
His saying, "Today I have completed your religion for you"
Numbering
Darussalam 4606
Bukhari 4606