Midrash for Bava Kamma 182:6

והתניא איזהו הרעת אחרים אכה פלוני ואפצע את מוחו

it would similarly mean to make them keep a fast. But how can one make others keep a fast? — By keeping them locked up in a room. But was it not taught: What is meant by doing harm to others? [If one says], I will smite a certain person and will split his skull?<span class="x" onmousemove="('comment',' Shebu. 27a. ');">³</span>

Sifrei Devarim