He visited every house, or at least he preached to all of the people. Here is scriptural warrant for house to house evangelism as well as that carried on in public meetings. ”
وَزَارَ كُلَّ بَيْتٍ ،‏ أَوْ عَلَى ٱلْأَقَلِّ كَرَزَ لِكُلِّ ٱلنَّاسِ (‏ اَلْعَدَدُ ٢٦‏ )‏ .‏