It wasnarrated from 'Aishah:
"The Prophet (ﷺ) used to pray atnight,and I was laying between him and the prayer direction, as a(body fora) funeral horizontally.'" (JA)
English reference (JA): Vol. 1, Book 5, Hadith 956 (JA)
Arabic reference (JA): Book 5, Hadith 1009 (JA)