שולחן ערוך אורח חיים · סימן תכ״ד

English

The law of bringing up "Ya'aleh v-Yavo" in the grace after meals, which has one clause: We bring up "Ya'aleh v-Yavo in the grace after meals. And if it was not said, it is not necessary to repeat it. And if it is remembered before one started the fourth blessing, say, "Blessed be the one who gave Rosh Ḥodesh to His people Israel as a reminder." (Rema: See above, SA Orach Chayim 188:7.)