Mr Tinubu said this while speaking with newsmen in Lagos on Friday after a Prayer Programme organised by Islamic and Christian clerics to mark his 67th birthday, Igbere Tv reports.
The ruling APC recently endorsed the candidature of Ahmed Lawan and Femi Gbajabiamila as President of the Senate and Speaker of the House of Representatives.
“Party discipline is key, we must be discipline in the party. We were a little careless in 2015. We created the opportunity for serpent to get into our party and that did not allow Nigeria to make the desired progress.
“You have seen the result of it and we are not going to allow that to happen again. We are going to respect our party and we are going to apply the whip.
“It is either you stay with us or you follow us or you leave. You have the freedom to choose but the freedom does not give you as a minority to go and collaborate and protrude our mandate given to you to another party who was our opposition and who is still our opposition.
“We would not take that this time, no matter who you think you are. That is how it is built. Why do you want to deviate from what has been structured?
“We look at our reward system equally, zone by zone,” he said.