It wasnarrated from Zainab bint Umm Salamah that her mother saidthat herbed was in front of the place where the Messenger of Allah(ﷺ)prostrated. (JA)
English reference (JA): Vol. 1, Book 5, Hadith 957 (JA)
Arabic reference (JA): Book 5, Hadith 1010 (JA)