Pausanias Description of Greece 4.32.3

[3]
  There is also the tomb of Aristomenes here. They say that it is not a cenotaph, but when I asked whence and in what manner they recovered the bones of Aristomenes, they said that they sent to Rhodes for them, and that it was the god of Delphi who ordered it. They also instructed me in the nature of the rites carried out at the tomb. The bull which is to be offered to the dead man is brought to the tomb and bound to the pillar which stands upon the grave. Being fierce and unused to bonds he will not stand; and if the pillar is moved by his struggles and bounds, it is a good omen to the Messenians, but if the pillar is not moved the sign portends misfortune.

[3] There is also the tomb of Aristomenes here. They say that it is not a cenotaph, but when I asked whence and in what manner they recovered the bones of Aristomenes, they said that they sent to Rhodes for them, and that it was the god of Delphi who ordered it. They also instructed me in the nature of the rites carried out at the tomb. The bull which is to be offered to the dead man is brought to the tomb and bound to the pillar which stands upon the tomb. Being fierce and unused to bonds he will not stand; and if the pillar is moved by his struggles and bounds, it is a good omen to the Messenians, but if the pillar is not moved the sign portends misfortune.