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.  

أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ إِذَا رَعَفَ انْصَرَفَ فَتَوَضَّأَ ثُمَّ رَجَعَ فَبَنَى وَلَمْ يَتَكَلَّمْ  

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.  

أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ كَانَ يَرْعُفُ فَيَخْرُجُ فَيَغْسِلُ الدَّمَ عَنْهُ ثُمَّ يَرْجِعُ فَيَبْنِي عَلَى مَا قَدْ صَلَّى  

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 ﷺ and water was brought to him and he did wudu. He then returned and completed his prayer.  

أَنَّهُ رَأَى سَعِيدَ بْنَ الْمُسَيَّبِ رَعَفَ وَهُوَ يُصَلِّي فَأَتَى حُجْرَةَ أُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ ﷺ فَأُتِيَ بِوَضُوءٍ فَتَوَضَّأَ ثُمَّ رَجَعَ فَبَنَى عَلَى مَا قَدْ صَلَّى  

Yahya related to me that Abd ar-Rahman ibn Harmala al-Aslami said, "I saw Said ibn al-Musayyab with his nose bleeding and blood poured out of it so that his fingers were all red from the blood coming out of his nose, and he prayed without doing wudu."  

رَأَيْتُ سَعِيدَ بْنَ الْمُسَيَّبِ يَرْعُفُ، فَيَخْرُجُ مِنْهُ الدَّمُ، حَتَّى تَخْتَضِبَ أَصَابِعُهُ مِنَ الدَّمِ الَّذِي يَخْرُجُ مِنَ أَنْفِهِ، ثُمَّ يُصَلِّي، وَلَا يَتَوَضَأُ