(a) Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that the Prophet (peace and blessings be upon him) said: "Offer some of your voluntary prayers at home as well; do not turn your houses into graveyards."
(b) It is narrated from Sayyiduna Zayd bin Thabit (may Allah be pleased with him) that he (peace and blessings be upon him) said: "The best prayer of a man is the prayer he offers in his house, except the obligatory prayer."
This topic will come later, if Allah wills.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3039