(207) باب صَلاَةِ الرَّجُلِ التَّطَوُّعَ فِي بَيْتِهِ
Ibn 'Umar reported the Messenger of Allah (ﷺ) as saying:
Offer some of your prayers in your houses, and do not make them graves.
Reference: Sunan Abi Dawud 1043
In-book reference: Book 2, Hadith 654
English translation: Book 2, Hadith 1038