After Purim, either the Shabbat immediately after or the following Shabbat, there is Shabbat Para when we take a second Torah scroll from the ark and read from it the section known as "Parashat Para." Parashat Para, which tells of the laws of the Para Aduma (the red heifer, whose ashes were used to sprinkle on those who had become ritually impure), is the opening section of Parashat Chukat, until the words, "Ve'ha'nefesh Ha'noga'at Titma Ad Ha'arev" (Bamidbar 19:1-22).
Tosefot in Masechet Berachot (13) write that the annual reading of Parashat Para constitutes a Torah obligation; this is mentioned by other Rishonim (Medieval Talmudists), as well, including the Rashba (Spain, 1235-1310), the Ritva (Spain, 1250-1330) and Terumat Ha'deshen (Rabbi Yisrael Isserlin, Germany-Austria, 1390-1460). The Shulchan Aruch indeed records this position.
Later writers have raised the question of where the Torah introduces such an obligation. If, indeed, this reading is required according to Torah law, this requirement must have a clear Biblical source. The work "Yalkut Ha'gershuni" suggests that this reading is obligated by force of the Torah's admonition to recall the unfortunate incident of the sin of the golden calf (Devarim 9:7). As this incident marks a very sad moment in our nation's history, we prefer not to read the actual narrative of the golden calf, and we instead read about the Para Aduma, which serves to atone for the sin of the golden calf. Indeed, the Sages describe the cow used for this ritual as the mother that comes to clean the mess made by her daughter, the calf. Thus, the reading of the Para Aduma section fulfills the Torah obligation to recall the incident of the golden calf.
Others, however, have questioned this explanation. If this is the obligation we seek to fulfill, we can just as easily do so on the Shabbat when we read Parashat Ki Tisa, which contains the narrative of the golden calf. On this Shabbat we could instruct the congregation to have in mind while listening to this reading to fulfill the Torah obligation of remembering the incident of the golden calf. Rather than instituting a special reading, we could fulfill this requirement through the standard, scheduled reading of Parashat Ki Tisa. Furthermore, when all is said and done, the Sages speak of the Para Aduma ritual as a Chok – a Mitzva whose underlying rationale eludes human comprehension. It is therefore difficult to claim that this Mitzva serves solely as atonement for the sin of the golden calf.
The Aruch Ha'shulchan (Rabbi Yechiel Epstein of Nevardok, Bielorussia 1829-1888) suggests a different Biblical source of the obligation to read Parashat Para. The Torah instructs in this section, "Ve'hayeta Lachem Le'chukat Olam" – that this law "shall be for you an eternal statute." The Torah here requires that we observe this law "eternally," despite the fact that this Mitzva of purifying oneself with the ashes of Para Aduma applies only when the Temple stands. The Aruch Ha'shulchan therefore suggests that the Torah here refers to an obligation to verbally recall this process by reading the relevant section in the Torah, even when practically the ritual cannot be performed.
In any event, other scholars claimed that the reading of Parashat Para originates from Chazal (the Sages), and is not required by Torah law. Some even claim that Tosefot did not, in fact, cast this requirement as a Torah obligation. This theory contends that Tosefot had written the abbreviation "Peh-Peh," referring to "Parashat Purim," the section read on Purim telling of the battle with Amalek, with which one can fulfill the Torah obligation to recall Amalek's hostility. Later editors mistakenly understood the abbreviation as referring to "Parashat Para," and therefore reached the erroneous conclusion that Tosefot viewed this reading as a Torah obligation. However, this theory is difficult to accept in light of the fact that numerous other Rishonim, as mentioned above, side with Tosefot on this matter. It is hard to imagine that they were all misled by a printing error.
Are women included in the obligation of Parashat Para?
Presumably, this would depend on the two sources mentioned above. According to the "Yalkut Ha'gershuni," as we have seen, we read Parashat Para to recall the incident of the golden calf. If so, then women, who did not take part in the worship of the golden calf, should be excluded from this obligation. According to the Aruch Ha'shulchan, however, who explained that this reading fulfills the obligation of eternally remembering the Para Aduma purification ritual, it should apply equally to women, who are likewise required to undergo purification through the process of the Para Aduma.
Therefore, women should endeavor to come to the synagogue to hear the reading of Parashat Para. If this presents a problem given their domestic responsibilities, they may remain at home.
It should also be noted that the highest-quality Torah scroll available should be used for this reading, since according to many it constitutes a Torah obligation.
Summary: There is a difference of opinion as to whether the reading of Parashat Para after Purim constitutes a Torah obligation, or was ordained by the Rabbis. Women should make an effort to come to the synagogue for this reading unless it poses considerable difficulty, and the highest-quality Torah scroll should be used for this reading.
