Hadith.703 - Imam Muhammad ibn Ali Al-Baqir (as) said:
"Whoever builds a mosque as small as a sandgrouse’s nest, Allah (swt) will build for them a house in Paradise."
Al-Kāfi #1422“I heard abu ’Abd Allah (a.s.), say, ‘If one builds a Masjid, Allah builds for him a house in paradise.’ Abu ‘Ubaydah has said, ‘Abu ‘Abd...