The Clone Wars - S2E11 - "Lightsaber Lost"

1:58 - Ahsoka:  "I, I was checking out a suspect.  I had a bad feeling about him."

2:44 - Ahsoka:  "He [Anakin] tells me over and over, 'Your lightsaber is your life; don't lose it.'"  In Attack of the Clones, Obi-Wan tells Anakin, "This weapon is your life" [21:59].

2:51 - A file in the Jedi library shows a woman who later appears in the cantina in A New Hope [first in a wide shot at 45:04, then in a closer shot at 45:40].  According to the trivia for this episode on the Star Wars website, this is Brea Tonnika.

[source]

21:17 - Master Sinube (to Ahsoka):  "Pass on what you have learned."  Yoda also says this (to Luke) in Return of the Jedi [44:11].

21:45 - Ahsoka (to a group of younglings):  "This weapon is your life, but it is also your responsibility.   Don't let it out of your sight."  An-other reference to Obi-Wan's "This weapon is your life" in Attack of the Clones.