Titus Livius (Livy), The History of Rome, Book 34
Evan T. Sage, Ph.D. Professor of Latin and Head of the Department of Classics in the University of Pittsburgh, Ed.

10. At the same time, as Marcus Helvius¹ was retiring from Farther Spain, accompanied by a guard of six thousand men furnished by Appius Claudius the praetor, the Celtiberi with a large force fell upon him near the town of Iliturgi. [2] Valerius writes that there were twenty thousand men there, that twelve thousand of them were killed, the town of Iliturgi taken and all the adults put to death. [3] After that Helvius came to the camp of Cato, and, because this region was now safe from the enemy, sent his guard back to Farther Spain and set out for Rome, and by reason of his victory entered the city in an ovation. [4] He deposited in the treasury fourteen thousand seven hundred and thirty-two pounds of uncoined silver, seventeen thousand and twenty-three denarii stamped with the two-horse chariot, and one hundred and nineteen thousand four hundred and forty-nine silver coins of Osca.² [5] The reason for the senate's refusal of a triumph was that he had fought under another's auspices and in another's province. But it was not until two years later that he had returned home, though he had turned his province over to his successor Quintus Minucius,³ having been detained there the following year by a long and serious illness. [6] So he entered Rome in an ovation [p. 447]only two months before his successor Quintus⁴ Minucius celebrated his triumph. [7] He too brought with him thirty-four thousand eight hundred pounds of silver and seventy-three thousand coined denarii and two hundred and seventy-eight thousand pieces of Oscan silver.