Musannaf Ibn Abi Shayba 3:3531

Hushaym and Ibn Fudayl narrated to us, from Husayn, from Sa’id ibn Jubayr and al-Sha’bi, that they both said regarding the *hadath* (breaking of wudu) and the nosebleed: He departs and performs wudu. If he spoke, he restarts the prayer, and if he did not speak, he builds upon his prayer.