General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 4985
Narrated Abdullah ibn as-Sa'ib ibn Yazid:
The Apostle of Allah (peace_be_upon_him) said: None of you should take the property of his brother in amusement (i.e. jest), nor in earnest. The narrator Sulayman said: Out of amusement and out of earnest. If anyone takes the staff of his brother, he should return it. The transmitter Ibn Bashshar did not say "Ibn Yazid, and he said: The Apostle of Allah (peace_be_upon_him) said.