Abdullah bin Masud reported,

The Prophet ﷺ led us in the noon prayer and prayed five units. Someone asked, "Has the prayer been increased?"He said, "What do you mean?"They replied, "You prayed five units."So he performed two prostrations after he had given the closing salutation.

Bukhari 7249

Sahih

حدثنا حفص بن عمر حدثنا شعبة عن الحكم عن إبراهيم عن علقمة

عن عبد الله قال

صلى بنا النبي ﷺ الظهر خمسا فقيل أزيد في الصلاة قال وما ذاك قالوا صليت خمسا فسجد سجدتين بعد ما سلم

البخاري 7249صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Reports of single narrators
Chapter
Acceptance of the report of a single truthful narrator regarding adhan, prayer, fasting, obligations, and rulings
Numbering
Darussalam 7249
Bukhari 7249