Auhid is the main handle and very decisive for human life, because monotheism is the basis for every charity that is done.
Only charity based on monotheism, according to Islamic guidance, will deliver humans to a good life and ultimate happiness in the hereafter.
Allah the Exalted said:
"Whoever does pious deeds, both men and women, while he is in a state of faith, we will actually give him a good life, and in fact we will reward them with a reward that is better than what they have done "(Surah An Nahl: 97).
Based on the important role of monotheism in human life, it is obligatory for every Muslim to study it.