٧-٨٠ حدثنا أبي رضي الله عنه قال: حدثنا سعد بن عبد الله قال: حدثنا يعقوب بن يزيد، عن مروان بن عبيد، عن محمد بن سنان، عن معتب بن المبارك قال: دخلت على أبي عبد الله عليه السلام في يوم الخميس وهو يحتجم فقلت له: يا ابن رسول الله أتحتجم في يوم الخميس؟ فقال: نعم من كان منكم محتجما فليحتجم في يوم الخميس فإن. عشية كل جمعة يبتدر الدم فرقا من القيامة ولا يرجع إلى وكره إلى غداة الخميس، ثم التفت إلى غلامه ربيح فقال: يا ربيح اشدد قصب الملازم، واجعل مصك رخيا، واجعل شرطك زحفا وقال أبوعبد الله: من احتجم في آخر خميس من الشهر في أول النهار سل منه الداء سلا
7-80 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Yaqoob ibn Yazid, on the authority of Marvan ibn Ubayd, on the authority of Muhammad ibn Sin’an, on the authority of Ma’tab ibn al-Mubarak, “Once I went to see Aba Abdullah as-Sadiq (MGB) on a Thursday. He was having phlebotomy performed. I asked him, ‘O (grand)son of the Prophet! Are you having phlebotomy done on a Thursday?’ He (MGB) replied, ‘Yes, It is fine for anyone to have phlebotomy done on a Thursday since there is some movement of blood on Friday nights due to the fear of the Resurrection which doesn’t return to its original place until Thursday morning.’ He (MGB) then faced his servant Rabih (who was performing the phlebotomy) and told him, ‘O Rabih! Stick in the phlebotomy tool firmly, cup slowly and cut lightly.’ Then he (MGB) said, ‘Pain would totally leave the body of whoever has phlebotomy done early in the morning on the last Thursday of the month.’”