Commentary for Pesachim 227:9

ואי בעית אימא לאחר בת קול ורבי יהושע היא דאמר אין משגיחין בבת קול:

<big><b>MISHNAH: </b></big>THEY THEN<span class="x" onmousemove="('comment',' After having recited the kiddush over the wine.');">¹⁸</span> SET [IT] BEFORE HIM.<span class="x" onmousemove="('comment',' Rashi and Rashbam: vegetables. R. Han.: the table with the food, which was brought after kiddush.');">¹⁹</span> HE DIPS THE LETTUCE<span class="x" onmousemove="('comment',' Tosaf.: into water or vinegar, and eats it. This is to stimulate the child's wonder, as it Is unusual to commence the meal thus.');">²⁰</span>

Rashbam on Pesachim