Musannaf Ibn Abi Shayba 3:5646

Abu Bakr narrated to us, he said: Sufyan ibn ‘Uyaynah narrated to us, from ‘Abd al-Hamid ibn Jubayr ibn Shaybah, who said: I asked Sa‘id ibn al-Musayyib about a man who performs tayammum, then finds water within the time [of the prayer]. He said: He repeats [the prayer].