EXCLUSIVE

Rick Ross is now home, after 4 days in the hospital ... TMZ has learned.

Sources connected to Ross tell us the rap mogul went home in the wee hours of Monday morning. We're told he's receiving care at his residence.

TMZ broke the story ... Ross was hospitalized after someone at his Florida home called 911 and reported he was unresponsive and "slobbing at the mouth."

Our sources say he had respiratory issues but it turned out to be heart-related. He was in ICU for a time and put on ECMO, which assists respiratory and heart functions.

He had actually been in 2 hospitals ... transferred from one to another due to his condition.