Abu Dawud Book 1, Hadith Number 382.Abu Dawud Book 1. Purification Chapter : The earth is pure when it becomes dry. Narated By Ibn ‘Umar : I used to sleep in the mosque in the lifetime of the Apostle of Allah (PBUH) when I was young and a bachelor. The dogs would urinate and frequently visit the mosque, and no one would sprinkle water over it. Related Previous Post Abu Dawud Book 1, Hadith Number 383. Next Post Abu Dawud Book 1, Hadith Number 381.