Reference for Gittin 99:8

אלא הכא כיון דדיניה מדאורייתא בעידית אפילו מיתמי נמי בעידית

According to Scriptural law, a creditor can claim only from the worst land, as laid down by 'Ulla; for 'Ulla said, 'The Torah has enacted that a creditor should collect from the worst land. For it says Thou shalt stand without, and the man<span class="x" onmousemove="('comment',' Deut. XXIV, 11. ');">⁸</span>

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