Parashas Vayeira · Passuk 19:17
And it came to pass, when they had brought them outside, that he said, “Flee for your life; do not look behind you, and do not stay in all the plain; flee to the mountain, lest you be swept away.”
Torah Temimah points to Yerushalmi Sanhedrin 10:8.
TT lemma: המלט על נפשך.
Sefaria — Yerushalmi Sanhedrin
English: “Flee for your life.” He said to him, “It is enough that you are saving your life.” This teaches that Lot went out with his hands upon his head and rescued nothing of his property.
Derash on the verse (Yerushalmi) — not a formal named middah of the 13. The limited scope of the command is taken as a statement of total material loss.
Lot was permitted to save only his life; he left Sedom with nothing of his wealth, hands upon his head.