(39) بَابُ: {وَاذْكُرْ عَبْدَنَا دَاوُدَ ذَا الأَيْدِ إِنَّهُ أَوَّابٌ} إِلَى قَوْلِهِ: {وَفَصْلَ الْخِطَابِ}
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. (ID)
Reference (ID): Sahih al-Bukhari 3422 (ID)
In-book reference (ID): Book 60, Hadith 94 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 55, Hadith 633 (ID)