Hadith 198

Bulugh al-Maram

Book 2: The Book of Prayer
{ رَأَيْتُ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-إِذَا سَجَدَ وَضَعَ رُكْبَتَيْهِ قَبْلَ يَدَيْهِ } أَخْرَجَهُ اَلْأَرْبَعَةُ .‏ 1‏
I saw the Prophet (ﷺ) placing his knees (on the ground) before his hands when he prostrated. [Reported by al-Arba'ah].