Yahya related to me from Malik from Nafi that Abdullah ibn Abbas used to have nose-bleeds and would leave to wash off the blood. He would then return and complete his prayer.
Muwatta Malik Book 2, Hadith 48
← Previous Hadith Yahya related to me from Malik from Nafi that Abdullah ibn Umar would leave and do wudu if he had a nose-bleed and then return and complete his prayer without saying anything.

Muwatta Malik Book 2, Hadith 47 Next Hadith → Yahya related to me from Malik from Yazid ibn Abdullah Qusayt al- Laythi that he saw Said ibn al-Musayyab having a nose-bleed while praying. He went off to the room of Umm Salama, the wife of the Prophet, may Allah bless him and grant him peace, and water was brought to him and he did wudu. He then returned and completed his prayer.

Muwatta Malik Book 2, Hadith 49