صَحِيحُ مُسْلِمٍ
Sahih Muslim 777 b
The Book of Prayer - Travellers
It is recommended to offer voluntary prayers in one’s house although it is permissible to offer them in the masjid
وَحَدَّثَنَا ابْنُ الْمُثَنَّى، حَدَّثَنَا عَبْدُ الْوَهَّابِ، أَخْبَرَنَا أَيُّوبُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ صَلُّوا فِي بُيُوتِكُمْ وَلاَ تَتَّخِذُوهَا قُبُورًا .
Ibn 'Umar reported Allah's Messenger (ﷺ) as saying: Pray in your houses, and do not make them graves.
Sahih Muslim, 777 bSahihصحيح