In the Name of Allah, the Most Gracious, the Most Merciful.
Foretelling the Victory of the Romans
These Ayat were revealed about the victory of Sabur, the king of Persia, over Ash-Sham (Greater Syria), the adjoining partisan states of the Arabian Peninsula, and the outlying regions of the land of the Romans. Heraclius, the emperor of the Romans, was forced to flee to Constantinople where he was besieged for a lengthy period. Then Heraclius regained the upper hand. Imam Ahmad recorded that Ibn `Abbas, may Allah be pleased with him, commented on this Ayah:
Backdrop of revelation of the Surah - the story of war between Rum and Persia
In the last verse of Surah ` Ankabut' Allah Ta’ ala had given the good tiding to those who would strive and struggle in His way. It was promised that for such people, He would open the doors toward Him, and that they would succeed in their objectives. The story that marks the beginning of Surah Ar-Rum is a manifestation of that very Divine help. The war referred to in this Surah was fought between Romans and Persians, who were both disbelievers, and had nothing to do with the Muslims. The people of Persia were fire-worshippers, while those of Rum were Christians, and hence, the People of the Book. So, naturally the people of Rum were relatively closer to Muslims. Many of their beliefs, such as faith in the Hereafter, the prophethood, and revelations, were common to Islamic beliefs. The Holy Prophet ﷺ made use of this part of their beliefs in his letter when he wrote to the king of Rum ( Rome) inviting him to accept Islam تَعَالَوْا إِلَىٰ كَلِمَةٍ سَوَاءٍ بَيْنَنَا وَبَيْنَكُمْ (come to a word common between us and you - 3:64). In fact it was this affinity between Islam and Christianity that caused the Persians to attack رُوم Rum. It happened when the Holy Prophet ﷺ was still living in Makkah. According to Hafiz Ibn Hajar, this war was fought in Syria at a place between Adhru’ at and Busra. The Pagans of Makkah aspired for the victory for the Persians in this war, because the Persians shared them in their belief in polytheism, but the Muslims wished the triumph of the Christians, as they were closer to Islam in their beliefs. But as it happened, the Persians defeated the Christians, and conquered the land right up to Constantinople, and built a temple there for worshipping fire. This victory was the last for Chosroe Parvez. After that, his decline sat in, and ultimately he was removed by the Muslims. (Qurtubi).
