حَدَّثَنَا يَحْيَى عَنْ شُعْبَةَ وَمُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ حَدَّثَنَا الْحَكَمُ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَّى الظُّهْرَ خَمْسًا فَقِيلَ لَهُ زِيدَ فِي الصَّلَاةِ قَالَ وَمَا ذَاكَ قَالُوا صَلَّيْتَ خَمْسًا قَالَ فَثَنَى رِجْلَهُ ثُمَّ سَجَدَ سَجْدَتَيْنِ بَعْدَمَا سَلَّمَ
مسند امام احمد بن حنبل · Hadith 4236
It was narrated from 'Abdullah that the Messenger of Allah (PBUH) prayed five rak'ahs in Zuhr, and it was said to him: O Messenger of Allah, has something been added to the prayer? He said: "Why is that?" They said: You prayed five. And he turned around and prostrated twice after he had said the salam.
Sanad
حَدَّثَنَا يَحْيَى عَنْ شُعْبَةَ وَمُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ حَدَّثَنَا الْحَكَمُ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ