It wasnarrated that 'Abdullah said:
"(Once) the Prophet (ﷺ) prayedZuhr with five Rak'ah, and it was said to him: 'Has somethingbeenadded to the prayer?' He said: 'What is that?' They toldhim, and heturned back towards the Qiblah and performed twoprostrations."
English reference: Vol. 1, Book 5, Hadith 1205
Arabic reference: Book 5, Hadith 1262