Does a person performing tayammum have to break his prayer if he learns that water is available during the prayer?

The questioner:
He says: I am the imam of a mosque in one of the villages. The water supply in the village was cut off, and we could not find anything with which to perform wudu, so we performed tayammum. During the prayer, we learned that the water had returned, but I did not break my prayer. After the prayer, some of the brothers told me that I should have broken the prayer as long as I knew that water was available. What is the correct ruling?

The Shaykh:
Allah, Glorified and Exalted is He, made tayammum permissible when water is not available . If water is found, the tayammum becomes invalid. However, if the water is found before the prayer, then it is obligatory to perform wudu. If it is found during the prayer, the prayer is also broken, and the Muslim performs wudu and prays. As for if the water is not found until after the person has finished the prayer, his prayer is valid and he does not repeat it. Yes.

The questioner:
And what is the ruling on the prayer for this questioner?

The Shaykh:
He has to repeat the prayer, because he found the water before the prayer was completed, so he repeats the prayer.