حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، وَأَبُو بَكْرِ بْنُ خَلاَّدٍ قَالاَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ شُعْبَةَ، حَدَّثَنِي الْحَكَمُ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ، قَالَ صَلَّى النَّبِيُّ ـ صلى الله عليه وسلم ـ الظُّهْرَ خَمْسًا فَقِيلَ لَهُ أَزِيدَ فِي الصَّلاَةِ قَالَ " وَمَا ذَاكَ " . فَقِيلَ لَهُ . فَثَنَى رِجْلَهُ فَسَجَدَ سَجْدَتَيْنِ .
It wasnarrated that ‘Abdullah said: “(Once) the Prophet (PBUH) 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.” Translation Not Available
Book Ref: Sunan Ibn Majah Book 5 Hadith 1205
Web Ref: Sunan Ibn Majah Vol 1 Book 5 Hadith 1205