While seated in the 100 level, the elder Wade was asked by arena personnel to stop using profanity. He refused and was ejected, the source said.
According to the venue's website, the United Center "intends to provide all guests with a safe, comfortable, and friendly environment. Our family atmosphere prohibits foul or abusive language, and any violation of these policies may result in ejection."
The Heat declined comment on the matter.
The Bulls defeated the Heat 106-102 on Wednesday. The younger Wade, a native of Chicago's south suburbs, had 36 points in the losing effort.
Jon Greenberg contributed to this report.