Former President George H. W. Bush was released from a California hospital Monday morning after an overnight stay for dehydration.

Doctors say Bush wasn't drinking enough water when he was playing golf on Sunday in 95-degree weather in Palm Springs, Calif.

The former president became dehydrated and was taken to Eisenhower Medical Center as a precaution, said Jean Becker, Bush's chief of staff.

"He's fine, he really is fine," Becker said. "He became dehydrated, and he had a fainting spell. He came to right away, but as a precaution, they took him to the hospital and then — much to his dismay — as a precaution, they held him overnight. The doctors released him first thing this morning."

Bush, 82, and former first lady Barbara Bush were in California visiting Lee Annenberg, a family friend.

President Bush was informed of his father's condition on Sunday night, before leaving Bogota, Colombia, for Guatemala City as part of a Latin America trip. He talked to his father by phone from Air Force One.

"His father assured him he was OK," presidential spokesman Tony Snow said Monday.

The Associated Press contributed to this report.