«تطوع الرجل في بيته يزيد على تطوعه عند الناس كفضل صلاة الرجل في جماعة على صلاته وحده»
The Prophet (peace and blessings be upon him) said:
"A man's voluntary prayer in his home is superior to his voluntary prayer in front of people, just as a man's prayer in congregation is superior to his prayer alone."
Hadith Referenceصحیح الجامع الصغیر / حرف التاء / 2953