Rebels - S2E18 - "Shroud of Darkness"

2:04 - Kanan (to Ezra, as they're running to the edge of a cliff):  "I don't like this."  This is also Leia's reaction after the Millennium Falcon lands in Cloud City in The Empire Strikes Back [1:19:58].

5:14 - Ahsoka (talking about the Jedi):  "One by one, they were hunted down."

Ezra:  "By the Inquisitors."

Ahsoka:  "Or worse."

There are similarities here to two lines in A New Hope.  Obi-Wan tells Luke that Vader "helped the Empire hunt down and destroy the Jedi knights" [34:19].  A bit earlier, after C-3PO translates R2-D2's announcement of approaching creatures, Luke guesses that they're "Sandpeople.  Or worse." [28:35]

13:34 - Kanan (to Temple Guard):  "I learned enough."  Luke makes a similar comment in The Empire Strikes Back after Vader says that Obi-Wan never told him what happened to his father:  "He told me enough!" [1:51:02].