In the light of this reality, the Shi‘as proceeded to investigate the original texts and documents of Islam and they came across an enormous quantity of sources which made them conclude that there are clear, sufficient, precise orders from the Prophet of Islam about his successor: the verse of wilāyah, the hadith of Ghadīr, the hadīth of Safinah, the hadīth of Thaqalayn, and many more, all of whic...