Chapter: The Statement of Allah Taa'la: "... And remember Our slave Dawud, endued with power..."
Narrated Ibn `Abbas:The prostration in Sura-Sa`d is not amongst the compulsory prostrations, though I saw the Prophet (ﷺ) prostrating on reciting it.
Reference
Sahih al-Bukhari 3422
In-book reference
Book 60, Hadith 94
USC-MSA web (English)
Vol. 4, Book 55, Hadith 633
Translation by Dr. M. Muhsin Khan · Language: EN
Sahih
Arabic Text
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا أَيُّوبُ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ لَيْسَ {ص} مِنْ عَزَائِمِ السُّجُودِ، وَرَأَيْتُ النَّبِيَّ صلى الله عليه وسلم يَسْجُدُ فِيهَا.