Negative commandment · Lo Ta’aseh #125 of 613
Not to eat the meat of the Paschal sacrifice raw or boiled in water
שלא לאכול בשר הפסח נא ומבושל
The verse · Shemot 12:9
אַל־תֹּאכְלוּ מִמֶּנּוּ נָא וּבָשֵׁל מְבֻשָּׁל בַּמָּיִם כִּי אִם־צְלִי־אֵשׁ רֹאשׁוֹ עַל־כְּרָעָיו וְעַל־קִרְבּוֹ
“Eat not of it raw, nor boiled at all in water, but roast with fire; its head with its legs, and with its entrails.”
The Rambam’s words
Not to eat the meat of the Paschal sacrifice raw or boiled in water, as [Exodus 12:9] states: "Do not eat from it raw or boiled in water."
שלא לאכול בשר הפסח נא ומבושל, שנאמר "אל תאכלו ממנו נא, ובשל" (שמות יב,ט).
Why · Sefer HaChinuch #7
To not eat the Pesach sacrifice uncooked or boiled
“From the roots of this commandment are so that the Jews will remember forever the great miracles that G-d performed for them during the exodus from Egypt.”
Who & when
“And [it] is practiced by males and females at the time of the [Temple].”
Where in the Mishneh Torah
Hilchot Paschal Offering הלכות קרבן פסח