Bismillah...
certain sayings of ALI(s) proves that for him ALLAH alone was most important, and he never worshiped or declred him self GOD or some thing...
there are many such sayings but I am posting 2 most beautiful one...
"I sat at the gate of my heart and let no one except God in" Imam Ali
If you understand Allah’s Majesty, then you will not attach any importance to the creatures.
- Nahjul Balagha