ἔτ' αὐτὸν ἄλλα βλήματ' ἐν κύβοις βαλεῖν πέποιθα

From LSJ

ἐν δὲ μηνὸς πρῶτον τύχεν ἆμαρ → it chanced to be on the first of the month, that day fell on the first of the month

Source