Question: We hear from the students of knowledge in Dammaj say: verily the authentic [number] of prostrations in the Quran are four. Is this correct? And where did the other prostrations come from?
Answer: “Yes, this is correct. In surah Saad based on the Hadith of Ibn ‘Abbas in Al-Bukhari and he said:
انها توبة نبي
Verily it is the repentance of a Prophet.
In surah Najm and surah Inshiqaq based on the Hadith of Abu Hurairah. Also surah Najm is reported from Ibn Mas’ud. And in surah Iqra. So these are established from the Prophet (ﷺ) “.
[Taken from: Qama ‘ul-Mu’aand pg. 352]
Faisal Ibn Abdul Qaadir Ibn Hassan