Sahih Bukhari

Narrated Mujahid:That he asked Ibn `Abbas, ""Is there a prostration in Surat-al-Sa`d?"" (38.24) Ibn `Abbas said, ""Yes,"" and then recited: ""We gave...So follow their guidance."" (6.85,90) Then he said, ""He (David ) is one of them (i.e. those prophets)."" Mujahid narrated: I asked Ibn `Abbas (regarding the above Verse). He said, ""Your Prophet (Muhammad) was one of those who were ordered to follow them.""