[Machine] I heard the Messenger of Allah ﷺ saying, "Cupping on an empty stomach is the most beneficial. It brings blessings and healing, increases intelligence, and improves memory. Get cupped on Thursday for the blessings of Allah Almighty, and avoid cupping on Friday, Saturday, and Sunday. Get cupped on Monday and Tuesday, as it is the day when Allah cured Job from his afflictions. There will be no contagious disease or leprosy except on Wednesday and Wednesday night. Indeed, Job was afflicted on Wednesday." All the narrators of this hadith are trustworthy except for Usman ibn Ja'far, as I don't know about his reliability or integrity.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ «الْحِجَامَةُ عَلَى الرِّيقِ أَمْثَلُ وَفِيهِ بَرَكَةٌ وَشِفَاءٌ يَزِيدُ فِي الْعَقْلِ وَيَزِيدُ الْحَافِظَ حِفْظًا وَاحْتَجِمُوا عَلَى بَرَكَةِ اللَّهِ تَعَالَى يَوْمَ الْخَمِيسِ وَاجْتَنِبُوا يَوْمَ الْجُمُعَةِ وَيَوْمَ السَّبْتِ وَيَوْمَ الْأَحَدِ وَاحْتَجِمُوا يَوْمَ الِاثْنَيْنِ وَالثُّلَاثَاءِ فَإِنَّهُ الْيَوْمُ الَّذِي عَافَى اللَّهُ فِيهِ أَيُّوبَ مِنَ الْبَلَاءِ وَلَيْسَ يَبْدُو بَرَصٌ وَلَا جُذَامٌ إِلَّا يَوْمَ الْأَرْبِعَاءِ وَلَيْلَةَ الْأَرْبِعَاءِ وَإِنَّمَا ابْتُلِيَ أَيُّوبُ يَوْمَ الْأَرْبِعَاءِ» رُوَاةُ هَذَا الْحَدِيثِ كُلُّهُمْ ثِقَاتٌ غَيْرَ عُثْمَانَ بْنِ جَعْفَرٍ هَذَا فَإِنِّي لَا أَعْرِفُهُ بِعَدَالَةٍ وَلَا جَرْحٍهو واه