I asked Zaid bin Thabit about prostration on which he said that he had recited An-Najm before the Prophet, yet he (the Prophet) had not performed a prostration.  

أَنَّهُ سَأَلَ زَيْدَ بْنَ ثَابِتٍ ؓ فَزَعَمَ أَنَّهُ قَرَأَ عَلَى النَّبِيِّ ﷺ {وَالنَّجْمِ} فَلَمْ يَسْجُدْ فِيهَا  

I recited An-Najm before the Prophet, yet he did not perform a prostration.  

قَرَأْتُ عَلَى النَّبِيِّ ﷺ {وَالنَّجْمِ} فَلَمْ يَسْجُدْ فِيهَا