Liturgy for Pesachim 78:6

והא מדקתני סיפא בקלח שלהן מכלל דרישא עלין פרושי קא מפרש כי קתני בין לחין בין יבשין אקלח

since it is destined to harden,<span class="x" onmousemove="('comment',' Its stalk becomes hard and thick.');">¹⁰</span> we must allow it more space. [For] did not R'Jose B'R'Hanina say: If the cabbage stalk hardens, more room is given to it [up to] a beth roba'?<span class="x" onmousemove="('comment',' A piece of ground of the capacity of one roba' (quarter of a kab) of seed.');">¹¹</span>

Pesach Haggadah