Parashas Shemos · EXTRA (side-ring) · Passuk 4:9
Sefaria — Ramban on Shemos 4:9
English: The doubled “v’hayu” teaches that the water becomes blood only upon reaching the dry land (not while still in the hand).
Commentary (Rishon) on a TT-silent passuk — EXTRA side-ring only.
See the Ramban on this passuk for the full derash and implications.