Dahl signed a minor-league contract with the Dodgers on Tuesday, Alex Freedman of the Oklahoma City Dodgers reports.
Dahl was released by the Padres on Friday, Jeff Sanders of The San Diego Union-Tribune reports.
The Padres designated Dahl for assignment Tuesday.
Dahl was activated from the 10-day injured list and optioned to Triple-A El Paso by the Padres on Thursday.
Dahl (quadriceps) will begin a rehab assignment at Triple-A El Paso on Friday, Jeff Sanders of The San Diego Union-Tribune reports.
The Padres placed Dahl on the 10-day injured list Sunday with a right quadriceps strain.
Padres manager Bob Melvin told reporters before Saturday's game against Atlanta that Dahl is dealing with an upper quad injury, AJ Cassavell of MLB.com reports.
Dahl is not in the Padres' lineup Thursday at Atlanta.
Dahl is starting in right field and batting eighth for the Padres on Tuesday against the Diamondbacks.
Dahl hit a game-tying solo home run in the ninth inning of Monday's 5-4 win over Arizona.