Hadith.704 - Abu Ubaidah Al-Hadha’ said:
"Imam Jafar ibn Muhammad Al-Sadiq (as) passed by me while I was between Makkah and Madinah placing stones. I asked: 'Is this from that?'
Imam (as) said: 'Yes.'"
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...