Buhari lawan atiku others celebrate obasanjo at 83

I think there may be some confusion here. While it's true that former President Olusegun Obasanjo turned 83 recently, I'm not aware of any information that suggests President Muhammadu Buhari, Senate President Ahmed Lawan, or former Vice President Atiku Abubakar (all of whom are politicians from different parties) celebrated Obasanjo's birthday together.

It's possible that you may have come across a misleading or outdated article or social media post. If you could provide more context or clarify what you're referring to, I'd be happy to help you fact-check the information.