Reference for Lamentations 5:18

עַ֤ל הַר־צִיּוֹן֙ שֶׁשָּׁמֵ֔ם שׁוּעָלִ֖ים הִלְּכוּ־בֽוֹ׃ (פ)

For the mountain of Zion, which is desolate, The foxes walk upon it.

ספר השרשים