(4) Prayer
كتاب الصلاة
(8a) Chapter: Mosques and places of Prayer - Section 1
(7) باب المساجد ومواضع الصلاة - الفصل الأول
Mishkat al-Masabih 714 
Ibn ‘Umar reported God’s Messenger as saying, “Perform some of your prayer in your houses, and do not turn them into graves.”* * This is most probably a figurative expression indicating that a house in which prayer is not offered is like a grave, as God is not worshipped there. (Bukhari and Muslim.)
وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «اجْعَلُوا فِي بُيُوتِكُمْ مِنْ صَلَاتِكُمْ وَلَا تَتَّخِذُوهَا قُبُورًا»
 مُتَّفَقٌ عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 714
In-book reference : Book 4, Hadith 144