THE BEST DAYS FOR CUPPING
The 17th, 19th and 21st of the Islamic month which coincides with Monday, Tuesday or Thursday. Anas ibn Maalik (Radiallahu Anhu) reported that Rasulullah (Sallallaahu Álayhi Wasallam) said, “Whoever wants to perform cupping then let him look for 17th, 19th and 21st…” [Saheeh Sunan Ibn Majah (3486)].
Ibn Umar (Radiallahu Anhu) reported that Rasulullah (Sallallaahu Álayhi Wasallam) said, “Cupping on an empty stomach is best. It increases the intellect and improves the memory. It improves the memory of the one memorising. So whoever is going to be cupped then on a Thursday in the name of Allaah. Keep away from being cupped on a Friday, Saturday and Sunday. Be cupped on a Monday or Tuesday. Do not be cupped on a Wednesday because it is the day that Ayoub was befallen with the trial. You will not find leprosy except (by being cupped) on Wednesday or Wednesday night.” [Saheeh Sunan ibn Maajah (3488)].
As for the Islamic day and night, the night enters before the day. So at sunset on Tuesday, Wednesday night comes in. Cupping is best performed during the day time between sunrise and sunset. If one is not able to be cupped on 17th, 19th or 21st (coinciding with Monday, Tuesday or Thursday) then any Monday, Tuesday or Thursday of the month.