Q: Your Eminence, my father and I built a Masjid (mosque) near my house about fifteen years ago; as we live together alone in the area. After some time, a neighbor of mine built a house then he built a Masjid bigger than mine. It is built of concrete and it occupies a large area and is located on a road. Upon finishing the construction of this Masjid, we offered congregational Salah (Prayer) together. But I have doubt concerning my Masjid where I previously used to offer Salah, so I asked Shaykh Sa‘d Al-Hijri about it and he said: "You should not abandon your old Masjid and you should offer Salah therein until you ask the opinion of Shaykh ‘Abdul-‘Aziz." Therefore, I would like you to tell me: Should I offer Salah in the old Masjid or with my neighbor in the new one? If your legal opinion is that I should offer congregational Prayer in the Masjid of my neighbor, what about (Part No. 5; Page No. 293) my old Masjid? Should I keep it in case I may need it or should I demolish it? May Allah protect you.