Not graded
Mishkat al-Masabih 4550
وَعَنِ الزُّهْرِيِّ مُرْسَلًا عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مِنْ احْتَجَمَ يَوْمَ الْأَرْبِعَاءِ أَوْ يَوْمَ السَّبْتِ فَأَصَابَهُ وَضَحٌ فَلَا يَلُومَنَّ إِلَّا نَفْسَهُ» . رَوَاهُ أَحْمَدُ وَأَبُو دَاوُدَ وَقَالَ: وَقَدْ أسْند وَلَا يَصح
Zuhri reported in mursal form that the Prophet said:
“If anyone has himself cupped on a Wednesday or a Saturday and is smitten by leprosy, he must blame no one but himself .” Ahmad and Abu Dawud transmitted it. It has been given an isnad, but Abu Dawud said that that is not sound;
Cited in Mishkat al-Masabih (No. 4550).