Chapter 44 –Washing of Hands and Saying of Grace After Meals
44.1) God-fearing people should wash their hands after a meal.
44.2) Do not pour water you wash your hands in, on the ground where others walk.
44.3) Leave the tablecloth and bread on the table when you recite Grace.
44.4) Remove or cover knives left on a table before reciting Grace.
44.5) Say Grace even when eating a piece of bread no larger than an olive.
44.6) Sit when you say the Grace after a meal.
44.7) Say “amen” after prayers beginning with Harahaman.
44.8) If you forget to say Grace before digestion, when you begin to feel hungry again, you may not make amends by saying Grace then.
44.9) If you fail to say Grace and leave the table with bread on it, do not say the benediction.
44.10) Recite Retzeh and then Yaaleh veyavo on the Sabbath of either the New Moon, a festival, or intermediate day of a festival.
44.11) If you are in doubt as to whether you have said Grace or not, say it again anyway.
44.12) If you omit Retzeh or Yaaleh veyavo on the Sabbath, recite them after you recite Uveneh.
44.13) If you omit a prayer after beginning benedictions, there are certain things you must do. See the source for details.
44.14) Do not conclude the benediction if you omit Yaaleh veyavo on Rosh Hodesh (name for the first day of every month in the Hebrew calendar, marked by the birth of a new moon).
44.15) You should say certain things when you forget to say both Retzeh and Yaaleh veyovo on the Sabbath. See the source for details about what to do.
44.16) You need not repeat Grace if you forget to include Al hannisim on Hanukkah (Festival of Lights) or Purim.
44.17) If you continue to eat until dark on the Sabbath, you must include Retzeh in the Grace.
44.18) If a non-Jew is in the room when Grace is recited, say, “Us the sons of the Covenant, all of us together.”