كتاب الصلاة
2  
The Book of Prayer
Bulugh al-Maram 299
Narrated Al-Bara' bin 'Azib (RA):
Allah's Messenger (ﷺ) said: "When you prostrate, place the palms of your hands on the ground and raise your elbows." [Reported by Muslim).
وَعَنْ اَلْبَرَاءِ بْنِ عَازِبٍ ‏-رَضِيَ اَللَّهُ عَنْهُمَا‏- قَالَ : قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ إِذَا سَجَدْتَ فَضَعْ كَفَّيْكَ , وَارْفَعْ مِرْفَقَيْكَ } رَوَاهُ مُسْلِمٌ .‏ 1
Reference : Bulugh al-Maram 299
In-book reference : Book 2, Hadith 299
English translation : Book 2, Hadith 297
Hadith Text
Reference