Reference for Shabbat 243:5

<big><strong>גמ׳</strong></big> וצריכא דאי אשמעינן נר משום דנר לאחד נר למאה אבל מים ליגזר דילמא אתי לאפושי בשביל ישראל וכבש ל"ל מעשה דרבן גמליאל וזקנים קמ"ל

<b><i>MISHNAH</i></b>. IF A GENTILE LIGHTS A LAMP, AN ISRAELITE MAY MAKE USE OF ITS LIGHT; BUT IF [HE DOES IT] FOR THE SAKE OF THE ISRAELITE, IT IS FORBIDDEN. IF HE DRAWS WATER<span class="x" onmousemove="('comment',' From a pit in the street. ');">⁸</span> TO GIVE HIS OWN ANIMAL, TO DRINK, AN ISRAELITE MAY WATER [HIS] AFTER HIM; BUT IF [HE DRAWS IT] FOR THE ISRAELITES SAKE, IT IS FORBIDDEN. IF A GENTILE MAKES A STAIRWAY TO DESCEND BY IT,<span class="x" onmousemove="('comment',' Rashi: a gangway from a large ship to dry land. ');">⁹</span>

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