حَدَّثَنَا سُوَيْدُ بْنُ سَعِيدٍ، حَدَّثَنَا عُثْمَانُ بْنُ مَطَرٍ، عَنْ زَكَرِيَّا بْنِ مَيْسَرَةَ، عَنِ النَّهَّاسِ بْنِ قَهْمٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ ‏"‏ مَنْ أَرَادَ الْحِجَامَةَ فَلْيَتَحَرَّ سَبْعَةَ عَشَرَ أَوْ تِسْعَةَ عَشَرَ أَوْ إِحْدَى وَعِشْرِينَ وَلاَ يَتَبَيَّغْ بِأَحَدِكُمُ الدَّمُ فَيَقْتُلَهُ ‏"‏ ‏.‏

It wasnarrated that Nafi’ said

“Ibn ‘Umar said: ‘O Nafi’! Thebloodis boiling in me. Bring me a cupper and let him be a young man,not anold man or a boy.’ Ibn ‘Umar said: ‘I heard theMessenger of Allah(ﷺ) say: “Cupping on an empty stomach isbetter, and it increasesone’s intellect and memory. And itincreases the memory of one who hasa good memory so whoever wants tobe cupped, (let him do it) on aThursday, in the Name of Allah. Avoidcupping on Fridays, Saturdaysand Sundays. Have yourselves cupped onMondays and Tuesdays, and avoidcupping on Wednesdays, for that isthe day on which the calamitybefell Ayyub, and leprosy andleucoderma only appear on Wednesday orthe night of Wednesday.”