Sugya: Timing for Mitzvah of Daled Minim
Review the משנה דף לח. & גמרא until the next Mishna
Learn the משנה שבת דף ט עמוד ב
Learn the ר”ן דף יח: דפי הריף “מי שבא בדרך & “הלכך
The Ran concludes by a Rabbinical mitzvah even if an individual started his activity באיסור (after the time of the Mitzvah began) still one does not need to interrupt as long as there will still remain time to perform he mitzvah after he completes his activity
Bring a proof whether Rashi agrees to the Ran.
Learn תוספת “מאי
Bring a proof whether Tosfos agrees to the Ran.
In conclusion what is the halacha regarding a mitzvah דאורייתא is one obligated interrupt an activity he is engaged in to perform the mitzvah?
Learn רמב״ם הלכות קריאת שמע פרק ב הלכה ו and the ראב”ד who asks multiple questions on the Rambam from our Gemara.
Learn שולחן ערוך אורח חיים ס’ ע סעיף ה with the משנה ברורה and “ביאור הלכה “היה