Sunan Abi Dawud
Prayer (Kitab Al-Salat): Prostration while reciting the Qur'an — Hadith #1409
Traditional grade: Sahih How we grade
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا أَيُّوبُ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ لَيْسَ { ص } مِنْ عَزَائِمِ السُّجُودِ وَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَسْجُدُ فِيهَا .
A prostration when reciting Sad is not one of those which are divinely commanded, but I have seen Messenger of Allah (ﷺ) prostrate himself.
Hadith Grading
Each grade below reflects one scholar's assessment of the chain of transmission. The grade describes the chain, not the Prophet's words. How we grade
Traditional grade: Sahih