The former Disney star revealed her decision to give the dog to someone in a Twitter post over the weekend, saying that she was not ready to have a new dog after her beloved pet Floyd died earlier this month, reported Ace Showbiz.
"Moonie, thank you for giving me so much love, comfort and peace. It's just to soon for me right now #missingmoonie," she tweeted.
When asked about the animal's whereabouts, Cyrus replied, "My friends mom who has a tiny pup (for) him (to) play with."
Floyd was reportedly killed by a coyote.
Cyrus had a hard time after her beloved pooch Floyd unexpectedly died earlier this month.