The Book of Characteristics · Hadith 629 (#Ḥadīth #1)

4-115 حدثنا أبي رضي الله عنه قال: حدثنا علي بن إبراهيم بن هاشم، عن أبيه، عن إسماعيل بن مرار، عن يونس بن عبدالرحمن، عن أبي الحسن عليه السلام قال: علامات الدم أربع الحكة والبثرة والنعاس والدوران

4-115 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Ali ibn Ibrahim ibn Hashim quoted his father, on the authority of Isma’il ibn Marar, on the authority of Yunus ibn Abdul-Rahman that Abil Hassan Al-Ridha (MGB) said, “Blood pressure has four signs: itching, pimples; drowsiness, and dizziness.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).