What was the dialogue that took place between Abu Sufyan and Heraclius concerning our Master, the Messenger of Allah?

Abu Sufyan told Heraclius that the Messenger, may Allah bless him and grant him peace, was of noble lineage, and no one had ever made such a claim before him, nor was there a king among his forefathers. He also mentioned that the weak among the people followed him, and their numbers were increasing, and none of them apostatized. Furthermore, they had never accused him of lying, nor did he ever betray. Their battles were back and forth, and he commanded them to worship Allah alone and abandon polytheism, and to observe prayer, truthfulness, chastity, and maintaining kinship ties. Heraclius affirmed the truthfulness of Abu Sufyan's statements and used them as evidence for the prophethood of Muhammad, may Allah bless him and grant him peace. He then read his letter, in which he invited him to Islam. Heraclius knew of the advent of a prophet and was informed that the king of circumcision had appeared. He initially thought it was the Jews, but then it became clear to him that the Arabs practice circumcision, so he realized that this prophet was the king of this nation. He offered the Romans the option to follow the Prophet, but when they refused, he claimed that he had tested their steadfastness in their religion.