Today's daf is sponsored by Gitta and David Neufeld in memory of Gitta's father, Yosef ben Menachem Mendel v'Pesha a"h on his tenth yahrzeit. He cherished his family and Torah, and would be so proud of the generations following in his footsteps and adhering to his values and moral compass. וכתר שם טוב עולה על כולם

Today's daf is sponsored by Harriet Hartman in memory of Moshe Hartman, z'l, on his 6th yahrzeit. He continues to be missed dearly. He would delight in my learning, his children's and his grandchildren's learning, which we will honor with a family siyum on his yahrzeit.

Today's daf is sponsored by Monica Steiner in honor of Rabbi David Abraham Kaplinsky, who begins his first pulpit in San Antonio, Texas today. May you find joy and strength in your work and community. I am so proud of you, David, and love you with all my heart.

In an idolatrous city, one may purchase from stores that are not decorated for idolatry, but not from those that are adorned for such purposes. Rabbi Yochanan and Reish Lakish disagree about both the reason for this prohibition and its scope. Reish Lakish is concerned with decorations that have beautiful scents, as the Jews will benefit from idol worship. According to Rabbi Yochanan, the issue is because those stores pay tribute to the idols. A difficulty is raised against Reish Lakish's position. In resolving the difficulty, the difficulty is moved to Rabbi Yochanan's position, but is resolved as well.

Items purchased in a forbidden manner are to be rendered useless. For animals, this means to cut off the hooves. A question is asked why this isn't forbidden on account of tzaar baalei hayim - mistreatment of animals? Why, in another context of sanctified items, is the penalty to close the animal in a room and let it die? What is the difference between the two cases?

If an animal purchased from an idol worshipper needs to have its hooves cut off, does something similar need to be done to a gentile slave that is purchased? The Gemara brings a different source to prove that one is not allowed to cause physical damage to a slave.

What items can one not sell to an idol worshipper as part of the prohibition to put a stumbling block in front of a blind person?