Rashi on Genesis 13:10/רש"י על בראשית י״ג:י׳

1כי כלה משקה THAT IT WAS WELL WATERED — a land of water-streams.

2לפני שחת ה' את סדום ואת עמורה BEFORE THE LORD DESTROYED SODOM AND GOMORRAHH that land was

3'כגן ה LIKE THE GARDEN OF GOD in respect of trees,

4כארץ מצרים LIKE THE LAND OF EGYPT in respect of seed (vegetables) (Genesis Rabbah 41:7).

5באכה צער means AS THOU GOEST עד צוער to Zoar. The Midrashic explanation (Horayot 10b; Genesis Rabbah 41:7) explains it to Lot’s discredit — just because they (the people of Sodom and Gomorrah) were addicted to lewdness did Lot choose their locality.