Titus Livius (Livy), The History of Rome, Book 23
Frank Gardener Moore, Professor Emeritus in Columbia University, Ed.

10. On the following day a full session of the senate was given to Hannibal. There his speech was at the outset very genial and kindly, thanking the Campanians for having preferred his friendship to a Roman alliance. [2] And among his other magnificent assurances he promised them that Capua should soon be the capital of all Italy, and that from it the Roman people along with the rest of the nations should derive its law. [3] He said that one man had no part in friendship with Carthage and the treaty made with himself, namely Magius Decius, a man who ought neither to be a Campanian nor to be so called; he demanded that the man be surrendered to him, and that in his own presence his case be brought up and a decree of the senate framed. [4] All voted for that proposal, although it seemed to many of them that the man did not deserve that misfortune; also [p. 31]that the right of liberty was being infringed by a first¹ act that was not insignificant. [5] Leaving the Senate House Hannibal took his seat on the tribune of the magistrates and ordered the arrest of Decius Magius, and that he be placed at his feet and make his defence. [6] While with undaunted spirit Magius was saying that by the terms of the treaty he could not be compelled to do that, chains were put upon him and he was ordered to be led to the camp with a lictor following. [7] So long as they led him with bare head, he kept haranguing as he went, shouting to the crowd all about him: “You have the freedom you wanted, Campanians. Through the middle of the market-place, in broad daylight, before your eyes, I, who am second to no one of the Campanians, am being hurried away in chains to my death. [8] What deed of greater violence could be done if Capua had been taken? Go to meet Hannibal, decorate your city and make the day of his coming a holiday, —that you may witness this triumph over your fellow-citizen.”

[9] As he was thus shouting and the populace seemed to be aroused, his head was covered and they were ordered to drag him more swiftly outside the gate. [10] Thus he was led into the camp, at once put on shipboard and consigned to Carthage, for fear, if there should be some outbreak at Capua in consequence of the shameful act, the senate also might regret having surrendered a leading man, and, when an embassy was sent to demand his return, Hannibal either must offend his new allies by refusing their first request, or by granting it be obliged to keep at Capua a fomenter of insurrection and riots. [11] A storm carried the ship to Cyrenae, which was then subject to kings.² On fleeing for refuge to the statue of [p. 33]King Ptolemy there, Magius was carried under guard³ to Ptolemy at Alexandria. [12] And having informed him that he had been bound by Hannibal contrary to his treaty rights, he was freed from his chains and allowed to return to Rome or to Capua, as he might prefer. [13] Magius said that Capua was unsafe for him, and on the other hand, at a time when there was a war between the Romans and the Campanians, Rome would be the abode of a deserter rather than of a guest; that he had no wish to live elsewhere than in the land of a king in whom he found the giver and defender of his freedom.