“Whoever wants to be cupped, let him seek out the seventeenth, nineteenth or twenty-first (of the month); and let none of you allow his blood to rage so that it kills him.”
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ أَرَادَ الْحِجَامَةَ فَلْيَتَحَرَّ سَبْعَةَ عَشَرَ أَوْ تِسْعَةَ عَشَرَ أَوْ إِحْدَى وَعِشْرِينَ وَلاَ يَتَبَيَّغْ بِأَحَدِكُمُ الدَّمُ فَيَقْتُلَهُ