Related for Rosh Hashanah 44:11

(Chapter 2 in the Erfurt manuscript) If one does not know him, his witnesses are sent with him, even on the Sabbath. An incident of R. Nehorai going to Usha with the Witness on the Sabbath and bearing witness for him.

Formerly it was customary to signal with beacons on the high mountain peaks: on the Mount of Olives, on Sartaba, on Agrippina, on the Tabor, on the Hauran and Bet Bilti. R. Shimon ben Elazar says: Also the mountains of Machaerus and Gadara and similar. When do you signal the month? [Answer:] On the night it was switched on. How [one should understand this] ? [Answer:] He fell on a Friday or Sabbath, one signals on Sunday because of it; when the month comes in its time, one signals for it; but if not, one does not signal for his sake. Because of all the months one signaled with signal fires. Said one: Before the sun , so he said nothing. [He said:] To the south of her, his words are valid. If one said: I saw him two ox sticks high, and if one said: three, then the testimony is valid. If one says three, and one says five, they are not taken together; but he is taken together with others [who make the same statement]. Says one I have seen him erect, and one says: I have seen him bent, so they are not taken together, but he is taken together with others [who make the same statement]. If he saw him half in the water, he said nothing; [he saw] him halfway through a cloud, he said nothing. [If he saw] him half through glass, he said nothing. R. Elazar ben R. Zadok says: If he is not seen in his time, the month is not sanctified; because heaven has it already sanctified. And likewise, R. Eleazar ben R. Zadok used to say: The messengers do not go to Syria until they have heard from the mouth of the court: Sanctified.