Pesahim is the third tractate of Seder Moed

Moed

Moed is the second Order of the Mishnah, the first written recording of the Oral Torah of the Jewish people . Of the six orders of the Mishna, Moed is the third shortest. The order of Moed consists of 12 tractates:# Shabbat: or Shabbath deals with the 39 prohibitions of "work" on the Shabbat...

("Order of Festivals") of the Mishnah

Mishnah

The Mishnah or Mishna is the first major written redaction of the Jewish oral traditions called the "Oral Torah". It is also the first major work of Rabbinic Judaism. It was redacted c...

and of the Talmud

Talmud

The Talmud is a central text of mainstream Judaism. It takes the form of a record of rabbinic discussions pertaining to Jewish law, ethics, philosophy, customs and history....

. It is concerned mainly with the laws of the Jewish holiday

Jewish holiday

Jewish holidays are days observed by Jews as holy or secular commemorations of important events in Jewish history. In Hebrew, Jewish holidays and festivals, depending on their nature, may be called yom tov or chag or ta'anit...

 Passover

Passover

Passover is a Jewish holiday and festival. It commemorates the story of the Exodus, in which the ancient Israelites were freed from slavery in Egypt...

 as well as the Passover lamb offering. The first four chapters cover the laws of chametz

Chametz

Chametz, also Chometz, and other spellings transliterated from , are leavened foods that are forbidden on the Jewish holiday of Passover. According to Jewish law, Jews may not own, eat or benefit from chametz during Passover...

, chapters 5-9 discuss the laws of the Passover lamb offering, and the tenth and final chapter discusses the order of the Passover seder

Passover Seder

The Passover Seder is a Jewish ritual feast that marks the beginning of the Jewish holiday of Passover. It is conducted on the evenings of the 14th day of Nisan in the Hebrew calendar, and on the 15th by traditionally observant Jews living outside Israel. This corresponds to late March or April in...

, as well as the law of doubles.