The reward of those who contributed to building a mosque

May Allah prolong your life in obedience to Him! If two, three, or more people contribute to building a mosque, does each of them receive the full reward of building a mosque, or less than that?
Have you read the chapter of al-Zalzalah? What did Allah say at the end of it?The questioner: [al-Zalzalah:7] .

The Shaykh: [al-Zalzalah:7-8] Each person receives the reward for what he did, but he also receives a second reward from another aspect, which is cooperation in righteousness; because if these people had not gathered, each one would have brought only a little, and the building would not have been completed.So we say: He receives the reward for his work and the reward for his assistance and support.An example of that is: If a man spends one hundred riyals in charity, he receives its reward. If he spends one hundred riyals in building a mosque,This expenditure brought benefit from two aspects: First: the work, meaning the reward for these riyals.And the second: And the assistance to complete the mosque. But if this man donates twenty thousand to the mosque, and this one donates twenty riyals,We cannot say: They are not equal. Each one receives the full reward of the building. That is not possible.
Look, my brother! The reward is according to the work.We say: He receives the reward for his work according to what he spent, and he receives the reward for cooperating in establishing this mosque.