פּירוש אויף שמואל א 1:6

Her rival. Her husband's other wife, Penina.

And her rival would anger her: Peninah, her rival wife, would anger her with words.

Her rival (tzarah): Peninah, who was a tribulation (tzarah) to her. And likewise, all two wives [married] to the same man are called tribulations (tzarot), since they are generally each other's enemies. And likewise in the Mishnah (Yevamot 1), "exempt their tzarot."

Frequently anger. Anger after anger, i.e., always.' Therefore it is written 'also [גֵם] anger.' She would say to her, "Did you buy your older son a cloak today, or your younger son, a shirt?"

In order that she should complain. In order to make her complain. Our Rabbis explain, 'in order to make her storm,' that she pray. Penina had good intentions.¹¹ Maseches Bava Basra 16a.

Her womb. Lit., opposite her womb, and so is every expression of the word .¹²See Rashi, Bereishis 7:16.בְּעַד