Learn the גמרא דף לז: “ואמר רבה הדס של מצוה (eight lines from top of the Amud) until “ואמר רבה הדס במחובר”
Question:
What is the reason it is prohibited to smell the haddasim?
- Special drasha that the Daled minim are consecrated to Hashem
- They are designated for a mitzvah.
See “רש”י “אסור להריח
Learn גמרא דף ט. “דאמר רב ששת (fourth mine of the Gemara) until ובית שמאי
Learn תוספת דף ט. “מנין
Clarify the two explanations of Tosfos as to when there is a drasha from the Torah prohibiting the use of schach and when we need the takana drabanan of muktza.
Questions:
How does Rashi extrapolate the prohibition of smelling the haddasim from schach which has a special drasha?
If the source for the prohibition is the drasha then why is it permitted to smell an Esrog?
See מרדכי גמרא פסחים פרק שני אות תקמ”ז who derives a halacha in all איסורי הנאה from our Gemara
https://hebrewbooks.org/pdfpager.aspx?req=14315&st=&pgnum=421
See ש”ך יו”ד ס’ ק”ח ס”ק כז who asks that our Gemara implies the opposite.
https://hebrewbooks.org/pdfpager.aspx?req=9145&st=&pgnum=513
See שפת אמת דף לז. “אמר רבה הדס של מצוה
https://hebrewbooks.org/pdfpager.aspx?req=14522&st=&pgnum=198
https://hebrewbooks.org/pdfpager.aspx?req=14522&st=&pgnum=199
Is it permitted to smell haddasim which are being used as schach?
Learn רן דף יח. דפי הריף “הדס של מצוה (middle of the wide lines)
https://hebrewbooks.org/pdfpager.aspx?req=14319&st=&pgnum=618&hilite=
See גמרא דף י: מנימין עבדיה דרב אשי (fourth line from top of the Amud) until אתמר
https://hebrewbooks.org/shas.aspx?mesechta=7&daf=10b&format=pdf
Questions:
If the Drasha prohibits usage of the schach then why didn’t Rav Ashi raise an objection to using the schach as a clothes line?
See ט”ז ס’ תרל”ח ס”ק ג starting from ועל כן נראה פשוט
https://hebrewbooks.org/pdfpager.aspx?req=14327&st=&pgnum=369
See שולחן ערוך ס’ תרל”ח last two lines of סעיף ב “אם סכך בהדס and משנה ברורה ס”ק כה & כו and שער הציון אות ל
https://hebrewbooks.org/pdfpager.aspx?req=60391&st=&pgnum=208