The Iliad by Homer Book 22 Page 14

Dardanian gates and under the walls, that his people might help him by showering down weapons from above, Achilles would gain on him and head him back towards the plain, keeping himself always on the city side. As a man in a dream who fails to lay hands upon another whom he is pursuing — the one cannot escape nor the other overtake — even so neither could Achilles come up with Hector, nor Hector break away from Achilles; nevertheless he might even yet have escaped death had not the time come when Apollo, who thus far had sustained his strength and nerved his running, was now no longer to stay by him.

Achilles made signs to the Achaean host, and shook his head to show that no man was to aim a dart at Hector, lest another might win the glory of having hit him and he might himself come in second.