Hanafi
The sources give no view for it here.
تحريم الدم المسفوح
هل يحرم أكل الدم المسفوح؟
Each school’s answer
In our wordsHanafi
Not stated in the sources
Maliki
Not stated in the sources
Shafi'i
Not stated in the sources
Hanbali
Not stated in the sources
The texts
٧٨ - هَذَا، وَالدَّمُ الْمَسْفُوحُ مُتَّفَقٌ عَلَى تَحْرِيمِهِ كَمَا مَرَّ. وَرَوَى ابْنُ حَبِيبٍ مِنَ الْمَالِكِيَّةِ اسْتِثْقَال أَكْل عَشْرَةٍ - دُونَ تَحْرِيمٍ - الأُْنْثَيَانِ وَالْعَسِيبُ وَالْغُدَّةُ وَالطِّحَال وَالْعُرُوقُ وَالْمَرَارَةُ وَالْكُلْيَتَانِ وَالْمَثَانَةُ وَأُذُنَا الْقَلْبِ. (٢)
«الموسوعة الفقهية الكويتية» (Kuwait) entry «أطعمة» vol. 5 p. 153
From the schools’ own books
Maliki
The sources give no view for it here.
Shafi'i
The sources give no view for it here.
Hanbali
The sources give no view for it here.
What is «in our words» is our standard wording; the books’ texts stay as they are.