Amitabh Bachchan says his body is giving him signals to 'retire'

Amitabh Bachchan recently wrote in his blog that his head is thinking something else and his fingers are doing something else. He added, "I must retire .. the head is thinking something else and the fingers another .. its a message..".
Prabhu Deva will dance with Salman Khan in Munna Badnaam Hua song from Dabbang 3.