Rams' Skins Dyed Red and the Hidden Desert Beast

Yalkut Shimoni on Torah 364:2

(Exodus 25:5) "And rams' skins dyed red." From where do we learn that one who reddens [dyes a hide red] on the Sabbath is liable? As it is said, "And rams' skins dyed red." "And tachash skins." Rabbi Judah says: a great beast used to grow in the wilderness, and from it they made the curtains. Rabbi Nehemiah says: it was a work of miracles, and at the very hour in which it was created, in that same hour it was hidden away.

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