(22) باب فِي كَرَاهِيَةِ الْبُزَاقِ فِي الْمَسْجِدِ
Narrated Abdullah al-Muharibi:
The Messenger of Allah (ﷺ) said: When a man stands with the intention of saying prayer, or if any of you says prayer, he should not spit before him, nor at his right side; but he should do so at his left side, if there is a place for it; or he should spit under his left foot and then rub it off.
Reference: Sunan Abi Dawud 478
In-book reference: Book 2, Hadith 88
English translation: Book 2, Hadith 478