Preparing for the Battle of Qadisiyah

In the context of research in Islamic history, specifically in the Rashidi era, the conquest of Iraq, the Battle of Qadisiyah (13-16 Shaban 15 AH/19-22 September 636 CE) with different sources on this date, but it is the closest to the truth, as the Battle of Qadisiyah is one of the decisive battles in Islamic history, because it was a turning point In the centers of global power at that time, after the defeat of the Persians in it, there was no standing for them, and the Islamic power began to appear quickly, and control over Iraq, Persia, and all the countries controlled by the Sassanid state, so this search was about preparing for the battle of Al-Qadisiyah, an accent on By using the historical quantitative method, and focusing on the numbers and ratios to the extent of the participation of the Arab tribes in that battle, while listing some details, so that the subject is not incomprehensible to the reader. So we talked about what raged the battle of al-Qadisiyah, the caliphs dealing with this event, and the mobilization of the nations human and material energies in order to defeat the Persian force and expel them from the regions of Iraq. Saad bin Abi Waqqas al-Zuhri, the uncle of the Prophet (may God bless him and grant him peace), marched with four thousand fighters, and he supplied him with fighters and sent to the tribes to join that army. , until he was approaching forty thousand fighters, formed by the Arab tribes.