Aqeedah
All of Allah's messengers (Peace and blessings of Allah be upon them) observed the essence of Islam, namely the complete submission to Allah, which can be summarized in the realization of the shahaadah: There is no god worthy of worship except Allah and Muhammad is His messenger. This testimony of faith incorporates pure monotheism. The meaning of the first part of the shahaadah is that no one deserves to be worshipped in Allah's Kingdom except Allah alone, and that whatever and whoever is worshipped besides Him is a false deity. Allah says, "That is because it is Allah - He is [...]