(27) باب النَّهْىِ عَنِ الاِضْطِجَاعِ، عَلَى الْوَجْهِ
It was narrated that Abu Umamah said:
"The Prophet(ﷺ) passed by a man who was sleeping in the masjid, lying on his face. He struck him with his foot and said: 'Get up' or; 'Sit up, fo this is a hellish kind of sleep.'" (ID)
Reference (ID): Sunan Ibn Majah 3725 (ID)
In-book reference (ID): Book 33, Hadith 70 (ID)
English translation (ID): Vol. 5, Book 33, Hadith 3725 (ID)