Responsa for Eruvin 175:11

הכי קאמר יש דין גזל בשבת כיצד דחורבה מחזיר לבעלים

and then you say: 'and a ruin reverts to its owner , from which it is evident that no possession is acquired?<span class="x" onmousemove="('comment',' By the person who uses it during the week (cf. prev. two nn.) .');">²³</span> - It is this that was meant: The law [of the return] of a robbery is valid in respect of a Sabbath domain,<span class="x" onmousemove="('comment',' V. supra n. 12.');">²⁴</span> since<span class="x" onmousemove="('comment',' Lit., 'how? Because'. [The text is not clear: R. Hananel reads: The law of robbery (whereby the robber acquires possession of the robbed object) applies on Sabbath. How is this? If the robber took the robbery into his own domain; but if he left it in the ruin of the robbed person, the ruin reverts it to its owner.]');">²⁵</span>

Teshuvot Maharam

Teshuvot Maharam

Teshuvot Maharam