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 Ibn ‘Umar said

“O Nafi’! The blood is boilinginme, find me a cupper, but let it be someone gentle if you can, notanold man or a young boy. For I heard the Messenger of Allah (ﷺ)say:‘Cupping on an empty stomach is better, and in it there ishealingand blessing, and it increases one’s intellect and memory. Sohaveyourselves cupped for the blessing of Allah on Thursdays, andavoidcupping on Wednesdays, Fridays, Saturdays and Sundays. Haveyourselves cupped on Mondays and Tuesdays, for that is the day onwhich Allah relieved Ayyub of Calamity, and He inflicted calamityuponhim on a Wednesday, and leprosy and leucoderma only appear onWednesdays, or on the night of Wednesday.”