Bus Cook, Favre's agent, told ESPN's Rachel Nichols and another reporter Thursday that Favre "is retired'" and he doesn't know of any phone conversation or meeting with Childress.
Thursday, Yahoo! Sports reported that Favre, 39, told Childress he will remain retired, according to a source close to the team. The Yahoo! report said that Favre told Childress of his decision in a phone call, and that he could "publicly explain his decision soon."
Cook said Thursday that he spoke to Favre, who never mentioned any telephone conversation with Childress. Cook also added that he knew of no plans for Favre to address the Vikings situation publicly, as suggested in the Yahoo! report.
"Like anyone else, he could always change his mind in the future about retiring but I haven't heard anything from him that that's the case," Cook said Thursday to reporters pursuing the Favre story.
Vikings officials declined comment to The Associated Press.
Wednesday, the Minneapolis Star Tribune reported that Childress left town on a commercial flight and was scheduled to meet with Favre sometime Thursday at the player's home in Hattiesburg, Miss.
However, Thursday morning, KMSP-TV in Minneapolis aired video showing a man appearing to be Childress entering Vikings headquarters.
Childress and the Vikings reportedly wanted to gauge Favre's level of interest in returning to the NFL to play for the Vikings. The future Hall of Famer quit football a second time after leading the New York Jets to a 9-7 record last season. Favre was hampered late in the year by a torn biceps in his throwing arm.
Favre wanted to play for the Vikings last season, but the Green Bay Packers specifically eliminated their NFC North rivals as a destination when they negotiated the trade that sent Favre to the Jets last August.
Although Favre said he would not return next season, the Jets released him after drafting Mark Sanchez in the first round. Favre could see the Vikings as the opportunity to fulfill the goal he was deprived of last season -- winning a Super Bowl.
With Jackson battling injuries last season, journeyman Gus Frerotte started 11 games and led the Vikings in passing.
Minnesota finished 10-6 to capture the NFC North but lost to the Philadelphia Eagles in the first round of the playoffs in a game started by Jackson.
The Associated Press contributed to this report.