Arabic (Original)
حَدَّثَنَا ابْنُ نُمَيْرٍ حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يُصَلِّي يَعْنِي يَقْرَأُ السَّجْدَةَ فِي غَيْرِ صَلَاةٍ فَيَسْجُدُ وَنَسْجُدُ مَعَهُ حَتَّى رُبَّمَا لَمْ يَجِدْ أَحَدُنَا مَكَانًا يَسْجُدُ فِيهِ.
English Translation
Ibn Numayr told us; Ubaydullah told us, from Nafi', from Ibn Umar: that the Messenger of Allah, peace and blessings be upon him, would recite the verse of prostration outside of prayer, and would prostrate, and we would prostrate with him, until sometimes one of us could not find a place to prostrate.