جَارَهُ means “his neighbor.” The verb يُؤْذِ covers more than physical injury: excessive noise, litter, blocking access, and intruding on privacy can also cause harm.
Case 1: Leaving belongings in a shared passage makes movement difficult; removing the obstruction respects the neighbor’s right.
Case 2: Fairly raising a genuine dispute or seeking a lawful remedy does not itself constitute harm, provided it is done without oppression or needless hostility.
A neighbor’s rights begin with consistent avoidance of injury, not only with occasional gifts.