Dr Mahathir Mohamad and wife Siti Hasmah Mohamed Ali share a birthday cake during a celebration at Muhyiddin Yassin's home in Kuala Lumpur, July 12, 2017.
Siti Hasmah turns 91 while Mahathir, the Parti Pribumi Bersatu Malaysia chairperson, turned 92 a few days before.
The couple met as medical students at University of Malaya in Singapore seven decades ago.
Siti Hasmah shared their love story with the public for the first time in her autobiography published last year.
The chapter dedicated to this was touchingly titled "Sayang" (love).