Jewish Babylonian Talmud – Tracts Rosh Hashana – Regulations concerning the intercalating of the month, the cornet, and the prayers of the New Year’s Day.
p. 51 CHAPTER III. REGULATIONS CONCERNING THE INTERCALATING OF THE MONTH--THE CORNET, AND OF WHAT IT IS TO BE MADE--AND THE PRAYERS OF THE NEW YEAR'S DAY. MISHNA: If the Beth Din and all Israel saw (the moon on the night of the thirtieth day), or if the witness had been examined, but there was no time to
