(24) باب فِي الْمَوَاضِعِ الَّتِي لاَ تَجُوزُ فِيهَا الصَّلاَةُ
Narrated AbuDharr:
The earth has been made for me purifying and as a mosque (place for prayer).
Reference: Sunan Abi Dawud 489
In-book reference: Book 2, Hadith 99
English translation: Book 2, Hadith 489