"The Prophet ﷺ would get cupped in his jugular veins and his upper back. And he would get cupped on the seventeenth (of the month), (or) the nineteenth, and (or) the twenty first." (Using translation from Tirmidhī 2051)
«كَانَ رَسُولُ اللَّهِ ﷺ يَحْتَجِمُ عَلَى الْأَخْدَعَيْنِ وَكَانَ يَحْتَجِمُ لِسَبْعَ عَشْرَةَ وَتِسْعَ عَشْرَةَ وَإِحْدَى وَعِشْرِينَ»
The Prophet ﷺ said: If anyone has himself cupped on the 17th, 19th and 21st it will be a remedy for every disease.
قَالَ رَسُولُ اللَّهِ ﷺ مَنِ احْتَجَمَ لِسَبْعَ عَشْرَةَ وَتِسْعَ عَشْرَةَ وَإِحْدَى وَعِشْرِينَ كَانَ شِفَاءً مِنْ كُلِّ دَاءٍ
"The Prophet ﷺ would get cupped in his jugular veins and his upper back. And he would get cupped on the seventeenth (of the month), (or) the nineteenth, and (or) the twenty first."
كَانَ رَسُولُ اللَّهِ ﷺ يَحْتَجِمُ فِي الأَخْدَعَيْنِ وَالْكَاهِلِ وَكَانَ يَحْتَجِمُ لِسَبْعَ عَشْرَةَ وَتِسْعَ عَشْرَةَ وَإِحْدَى وَعِشْرِينَ
[Machine] "The Prophet ﷺ used to perform I'tikaf during the seventeenth, eighteen, and twenty-first nights."
«أَنَّ النَّبِيَّ ﷺ كَانَ يَحْتَجِمُ لِسَبْعَ عَشْرَةَ وَتِسْعَ عَشْرَةَ وَإِحْدَى وَعِشْرِينَ»
The Prophet ﷺ said: If anyone has himself cupped on the 17th, 19th and 21st it will be a remedy for every disease. (Using translation from Abū Dāʾūd 3861)
قَالَ رَسُولُ اللهِ ﷺ مَنِ احْتَجَمَ لِسَبْعَ عَشْرَةَ وَتِسْعَ عَشْرَةَ وَإِحْدَى وَعِشْرِينَ كَانَ شِفَاءً مِنْ كُلِّ دَاءٍ
"منِ احْتَجَمَ لِسَبْعَ عَشْرةَ مِنَ الشَّهْر وَتِسْعَ عَشْرة، وإِحْدَى وعشْرِينَ، كَان لَهُ شِفَاءً مِنْ كُلِّ دَاءٍ".