Chapter: The Statement of Allah Taa'la: "... And remember Our slave Dawud, endued with power..."

I asked Ibn `Abbas, "Should we perform a prostration on reciting Surat-Sa`d?" He recited (the Sura) including: 'And among his progeny, David, Solomon..(up to)...so follow their guidance (6.84-91) And then he said, "Your Prophet is amongst those people who have been ordered to follow them (i.e. the preceding apostles).

The prostration in Sura-Sa`d is not amongst the compulsory prostrations, though I saw the Prophet (ﷺ) prostrating on reciting it.