FWIW, this is what his wife wrote on Twitter:
“The 60-year-old supermodel shared an image on Twitter saying, ‘The struggle is real, but so is God,’ along with the caption ‘Rise’.”
I had assumed from some of the statements he made that he was an atheist, and certainly had attacked organized religion, but from what his wife wrote, it seems in his final days he did at least acknowledge there was a God.
Iman is Muslim, so it's also quite possible she is speaking/writing from her own perspective.