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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:3388 – Abū Aḥmad al-Mihrajānī > Abū Bakr b. Jaʿfar > Muḥammad b. Ibrāhīm > Ibn Bukayr > Mālik > Balaghah

[Machine] That Abdullah ibn Abbas used to bleed and then he would go out to wash the blood, then he would return to build on what he had prayed.  

البيهقي:٣٣٨٨ – وَأَخْبَرَنَا أَبُو أَحْمَدَ الْمِهْرَجَانِيُّ أنبأ أَبُو بَكْرِ بْنُ جَعْفَرٍ ثنا مُحَمَّدُ بْنُ إِبْرَاهِيمَ ثنا ابْنُ بُكَيْرٍ ثنا مَالِكٌ أَنَّهُ بَلَغَهُ

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

See similar narrations below:

Collected by Mālik
malik:2-48 – Mālik > Balaghah

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.  

مالك:٢-٤٨ – وَحَدَّثَنِي عَنْ مَالِكٍ أَنَّهُ بَلَغَهُ

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