The Prophet ﷺ used to be cupped, and he never withheld anyone's wages unjustly.
حدثنا أبو نعيم حدثنا مسعر عن عمرو بن عامر قال
كان النبي ﷺ يحتجم ولم يكن يظلم أحدا أجره
Its isnad is sahih. Amr bin Amir is al-Ansari, and it occurs in the printed edition as Umar, which is an error, because Umar bin Amir does not narrate from Anas, nor does Masaar narrate from him. The hadith previously occurred at 13186.