Dose of Halacha

Question: I walked through some muddy grass on Shabbos. Can I wipe the mud off my shoes before going back inside? Answer: There are a few potential issues with scraping off mud from one’s shoes on Shabbos: The Gemara (Shabbos 124b) relates that Rava’s shoes got muddy one Shabbos and he used a piece of earthenware to clean them off. The Gemara (ibid 141a) discusses whether one may use the back of a knife, and whether this applies equally to old and new shoes. The Gemara discusses whether one may scrape one’s shoes on the ground or wall as doing so may be fixing a small crack, an issue of boneh, building . According to the Mishna Berura (302:28) this wouldn’t normally be so problematic, especially when rubbing them against a wall (See Shevet Halevi 5:37). The Shulchan Aruch (OC 302:7) writes that one mustn’t remove mud that has properly dried up as scraping the shoe would cause the soil to crumble which would be considered tochen, grinding. A third concern that the poskim ...

Question: It is too late for my daughter to hear havdala on motzaei Shabbos. Should she say it on Sunday? Answer:  Parents have a mitzva derabanan of chinuch, to train their children to observe mitzvos. Thus, the Mishna Berura (343:3) writes that when a child is old enough to appreciate what is permitted and forbidden on Shabbos, they should listen to kiddush and havdala. The Shulchan Aruch (OC 299:6) writes that if one didn’t hear havdala on motzaei Shabbos , then one can do so until Tuesday. One saying havdala late should omit the berachos on ner and besamim. While the Tur (OC 299) writes that one should recite havdala before eating anything (See Rema OC 299:6), the Mishna Berura (269:1) writes that we shouldn’t keep children waiting until after Kiddush to eat. Likewise, they may eat even before hearing havdala. R’ Yehoshua Neuwirth (Chinuch Habanim Lemitzvos 24) writes that when Shabbos ends too late for children to stay up to hear havdala , they should re...

Question: In the shul that I used to attend, they were adamant not to decorate the shul with flowers on Shavuos, yet the shul I daven in now does decorate the shul . Which is right? Answer: The Rema (OC 494:3) writes that many have the minhag to place herbs in shuls and their homes over Shavuos to commemorate the giving of the Torah. The Mishna Berura (494:10) explains that there was grass or herbs on Har Sinai (See Kaf Hachaim OC 494:53) . The Magen Avraham (494:5) extends this minhag to trees, writing that as we are judged on Shavuos over the fruit, the trees should remind us to pray for a good produce (See Shulchan Aruch Harav 494:15). R’ Ovadia Yosef (Yechave Daas 4:33) quotes midrashim to explain why people place flowers. The poskim (Chayei Adam 2:131:13, Mishna Berura 494:10; Igros Moshe YD 4:11:5) quote the Vilna Gaon who decried the practice of placing trees in shuls as it has become the practice of idolaters. Thus, some shuls do not place any plants in th...