Prayer (Kitab Al-Salat)
2/205. Chapter:
Those Who Said He Should Complete (The Prayers) Based Upon His Strongest Judgement
Sunan Abi Dawud
حَدَّثَنَا حَجَّاجٌ، حَدَّثَنَا يَعْقُوبُ، أَخْبَرَنَا أَبِي، عَنِ ابْنِ إِسْحَاقَ، حَدَّثَنِي مُحَمَّدُ بْنُ مُسْلِمٍ الزُّهْرِيُّ، بِإِسْنَادِهِ وَمَعْنَاهُ قَالَ " فَلْيَسْجُدْ سَجْدَتَيْنِ قَبْلَ أَنْ يُسَلِّمَ ثُمَّ لْيُسَلِّمْ " .
This traditions has also been narrated by Muhammad b. Muslim al-Zuhr through a different chain of transmitters and to the same effect. This version adds; He should perform two prostrations before giving the salutation.
Reference : Sunan Abi Dawud 1032In-book reference : Book 2, Hadith 643English translation : Book 2, Hadith 1027