Ali ibn Ibrahim from his father from Ibn Abi Umayr from Hisham ibn al-Hakam from Abu Ubaydah al-Hadhdha' who said: I heard Abu Abdillah عليه السلام, peace be upon him, say: “Whoever builds a mosque, Allah سبحانه وتعالى will build for him a house in Paradise.” Abu Ubaydah said: “Abu Abdillah عليه السلام, peace be upon him, passed by me on the road to Mecca, while I had arranged stones for a mosque, so I asked: ‘May I be your ransom, we hope that this is of that (included in the reward).’” Imam عليه السلام said: “Yes.”