Reference for Rosh Hashanah 67:22
אלא רבי אבהו מאי אתקין אי גנוחי גנח הא עבדיה אי ילולי יליל הא עבדיה מספקא ליה דלמא גנח ויליל
R''Awira strongly demurred against this procedure, saying, Perhaps it is a kind of wailing, and the three shebarim make an interruption between the teru'ah and the [first] teki'ah? - We assume that he afterwards blows teki'ah, teru'ah, teki'ah. Rabina strongly demurred against this, saying, Perhaps it is a kind of sighing and the teru'ah makes an interruption between the shebarim and the [second] teki'ah? - We suppose that he afterwards blows teki'ah, shebarim, teki'ah. What then is the point of R'Abbahu's regulation?<span class="x" onmousemove="('comment',' If he repeats both teki'ah, teru'ah, teki'ah, and teki'ah, shebarim, teru'ah.');"><sup>35</sup></span>