Lotfollah Safi Golpaygani ( Persian : لطف‌الله صافی گلپایگانی ; 20 February 1919 – 1 February 2022) was an Iranian Grand Ayatollah . He was at one point the most senior Twelver Shia scholar ( Marja' ) in Iran until his death. He resided in Qom and taught Islam in the Qom Seminary .