The Gemara relates: Ulla happened to come to the house of Rav Naḥman. He ate bread, recited Grace after Meals, and gave the cup of blessing to Rav Naḥman. Rav Naḥman said to him: Master, please send the cup of blessing to Yalta, my wife.
Ulla responded to him: There is no need, as Rabbi Yoḥanan said as follows: The fruit of a woman’s body is blessed only from the fruit of a man’s body, as it is stated: “And He will love you, and bless you, and make you numerous, and He will bless the fruit of your body” (Deuteronomy 7:13).
The Gemara infers: “He will bless the fruit of her body” was not stated. Rather, “He will bless the fruit of your [masculine singular] body.” For his wife to be blessed with children, it is sufficient to give the cup to Rav Naḥman...
...The Gemara relates that meanwhile Yalta heard Ulla’s refusal to send her the cup of blessing. She arose in a rage, entered the wine-storage, and broke four hundred barrels of wine.
Afterward, Rav Naḥman said to Ulla: Let the Master send her another cup. Ulla sent Yalta a different cup with a message saying that all of the wine in this barrel is wine of blessing; although you did not drink from the cup of blessing itself, you may at least drink from the barrel from which the cup of blessing was poured.
She sent him a stinging response: From itinerant peddlers, Ulla traveled regularly from Eretz Yisrael to Babylonia and back, come meaningless words, and from rags come lice.