Reference for Arakhin 54:53

אמר רב חסדא לא שנו אלא שלא נישום הקדש בג' אבל נישום הקדש בג' מוסיפין

Shall we, then, assume that R'Hisda is of the view of Beth Shammai?<span class="x" onmousemove="('comment',' The ultimate decision in a matter of conflict between Beth Shammai and Beth Hillel is, as a general rule, in accord with the latter. How then could R. Hisda, an Amora, adhere to the view of Beth Shammai?');">¹⁴</span>

Jastrow