When is cupping recommended?
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، أَخْبَرَنِي أَبُو بَكْرَةَ، بَكَّارُ بْنُ عَبْدِ الْعَزِيزِ أَخْبَرَتْنِي عَمَّتِي، كَبْشَةُ بِنْتُ أَبِي بَكْرَةَ - وَقَالَ غَيْرُ مُوسَى كَيِّسَةُ بِنْتُ أَبِي بَكْرَةَ - أَنَّ أَبَاهَا، كَانَ يَنْهَى أَهْلَهُ عَنِ الْحِجَامَةِ، يَوْمَ الثُّلاَثَاءِ وَيَزْعُمُ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّ يَوْمَ الثُّلاَثَاءِ يَوْمُ الدَّمِ وَفِيهِ سَاعَةٌ لاَ يَرْقَأُ .
Narrated Kabshah daughter of AbuBakrah: (the narrator other than Musa said that Kayyisah daughter of AbuBakrah) She said that her father used to forbid his family to have themselves cupped on a Tuesday, and used to assert on the authority of the Messenger of Allah (ﷺ) that Tuesday is the day of blood in which there is an hour when it does not stop.