Reference for Eruvin 98:6

שביתתי בעיקרו מהלך ממקום רגליו ועד עיקרו אלפים אמה ומעיקרו ועד ביתו אלפים אמה נמצא מהלך משחשיכה ארבעת אלפים אמה

WAS OVERTAKEN BY DUSK,<span class="x" onmousemove="('comment',' J.T. and MS.M. read: 'and he feared that dusk might overtake him'.');">¹⁰</span> AND HE KNEW OF A TREE OR A WALL<span class="x" onmousemove="('comment',' Within a Sabbath limit From his position in one direction and within a Sabbath limit from his home in the other direction.');">¹¹</span>

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