Pausanias Description of Greece 2.31.1

[1]
  In the market-place of Troezen is a temple of Artemis Saviour, with images of the goddess. It was said that the temple was founded and the name Saviour given by Theseus when he returned from Crete after overcoming Asterion the son of Minos. This victory he considered the most noteworthy of his achievements, not so much, in my opinion, because Asterion was the bravest of those killed by Theseus, but because his success in unravelling the difficult Maze and in escaping unnoticed after the exploit made credible the saying that it was divine providence that brought Theseus and his company back in safety.

[1] In the marketplace of Troizen is a temple of Artemis Savior [ Sōteira], with statues [ agalmata] of the goddess. It was said that the temple was founded and the name Savior given by Theseus when he returned from Crete after overcoming Asterion the son of Minos. This victory he considered the most noteworthy of his achievements, not so much, in my opinion, because Asterion was the bravest of those killed by Theseus, but because his success in unraveling the difficult Maze and in escaping unnoticed after the exploit made credible the saying that it was divine providence that brought Theseus and his company back in safety.