Jackson has agreed to a contract with the Panthers, Mike Kaye of The Charlotte Observer reports.
Jackson (concussion) was a full participant in practice Wednesday.
Coach Sean McDermott said Friday that Jackson (concussion) is ruled out for Sunday's game against the Eagles, Alaina Getzenberg of ESPN.com reports.
Jackson (concussion) did not practice Wednesday, Maddy Glab of the Bills' official site reports.
Jackson (head) has been ruled out for the rest of Sunday's contest with the Jets, Katherine Fitzgerald of The Buffalo News reports.
Jackson (foot) was a full participant in Thursday's practice.
Jackson (foot) was listed as a limited participant in Wednesday's walk-through.
Jackson (foot) is inactive for Sunday night's game against the Giants.
Jackson (foot) is listed as questionable for Sunday's game versus the Giants.
Jackson (foot) practiced on a limited basis Friday and is listed as questionable for Sunday's game against the Giants.