0:20 - Rex (to Ahsoka): "In my book, experience outranks everything." He says the same thing to her shortly after they meet in The Clone Wars movie [12:11].
5:54 - Maul (to Ezra): "Please put your weapon away. I, I mean you no harm." In The Empire Strikes Back, Yoda says the same thing to Luke when he first meets him: "Away put your weapon; I mean you no harm" [47:23].
6:36 - Maul (to Ezra): "Why are you here?" This continues the parallel with Luke and Yoda's meeting in The Empire Strikes Back; Yoda's next comment is: "I am wondering: why are you here?" [47:27].
11:32 - Maul (explaining to Ezra how to get into the Sith temple): "Two must lift these stones, no more, no less; that is the way of the Sith." In The Phantom Menace, Yoda also uses this phrase to describe the Sith: "Always two there are, no more, no less, a master and an apprentice" [2:07:59].
14:51 Maul (to Ezra): "Unless you take risks, do what must be done, there will always be limits to your abilities." In Revenge of the Sith, Sidious says the same thing, albeit as a command: "Do what must be done, Lord Vader" [1:18:15].
18:26 - Maul (to Ezra as the Sith temple lifts him higher): "Jump!" Anakin, from the back of the reek, also calls this to Padmé in Attack of the Clones, while she's perched on top of her pillar in the Geonosian arena [1:48:56].
18:50 - Maul (to Ezra): "Trust me." Han also says, "Trust me" (to Leia) in The Empire Strikes Back [1:20:06].
19:55 - Kanan (to Chopper): "What do you mean we've got company?" Han uses a similar expression in A New Hope: "Luke, we're gonna have company!" [1:15:46].