Is cupping therapy disliked on Saturdays or Fridays if they coincide with the 17th, 19th, or 21st of the month, and what is the authenticity of the hadith reported in this regard: "Do not get cupped on Wednesday, or Friday, or Saturday, or Sunday"?

The summary indicates that the ahadith concerning the timing of hijamah (cupping) are divided into two categories: preferred days and prohibited days. It mentions that most imams have deemed all these ahadith to be weak.

The summary then states the desirability of hijamah on the 17th, 19th, and 21st days of the lunar month, based on authentic narrations from the Companions, the endorsement of some scholars, and medicine's agreement with these days. Ibn al-Qayyim also mentioned that physicians unanimously agree that hijamah in the second half of the month is more beneficial.

As for the days of the week, nothing has been medically proven. It has been reported that Imam Ahmad avoided hijamah on Saturdays and Wednesdays, with some sayings mentioning the dislike of hijamah on specific days of the week, and some weak ahadith regarding this.