Macrobius, Saturnalia 1.20.12
nam Theron rex Hispaniae citerioris cum ad expugnandum Herculis templum ageretur furore instructus exercitu navium, Gaditani ex adverso venerunt provecti navibus longis, commissoque proelio adhuc aequo Marte consistente pugna, subito in fugam versae sunt regiae naves, simulque inproviso igne correptae conflagraverunt. paucissimi qui superfuerant hostium capti indicaverunt apparuisse sibi leones proris Gaditanae classis superstantes ac subito suas naves inmissis radiis, quales in Solis capite pinguntur, exustas.
When Theron, the king of Nearer Spain, was driven by madness to attack the sanctuary of Hercules, and had prepared a fleet, the people of Gades came out to meet him sailing on long ships; when battle had been joined and they were still fighting on an equal footing, all of a sudden the king’s ships turned to flee and at the same moment unexpectedly burst into flames and burned up. When the very few of the enemy who had survived were captured, they said that they had seen lions standing on the prows of the fleet from Gades, and that their own ships were suddenly attacked and consumed by rays such as those which are depicted on the head of the Sun.