Talmud for Taanit 57:9

³⁷⁰This paragraph also appears in Megillah1:6 (מ). Rebbi Jeremiah in the name of Rebbi Ḥiyya, it should have been logical that one should fast on the Tenth, since on it our God’s Temple was burned. Why on the Ninth? Because the calamity started on it³⁷¹2K. 25:8.. So it was stated, on the Seventh they entered, on the Eighth they were misbehaving in it, on the Ninth they started the fire, and on the Tenth it was burned³⁷²Babli 29a, Tosephta 3:10.. Rebbi Joshua ben Levi fasted Ninth and Tenth. Rebbi Abun fasted Ninth and Tenth. Rebbi Levi fasted on the Ninth and the night of the Tenth. Rebbi Abba bar Zavda in the name of Rebbi Ḥanina: Rebbi wanted to uproot the Ninth of Av but they did not let him³⁷³Babli Megillah 5b.. Rebbi Eleazar said to him, I was with you but it was not said so, but Rebbi wanted to uproot the Ninth of Av which fell on a Sabbath but they did not let him. He said, because it was pushed aside, let it be pushed aside. They said to him, let it be pushed to the next day. In a similar case, that which we stated there³⁷⁴Mishnah Yebamot 6:6.: “Rebbi Joḥanan ben Beroqa said, for both of them it says, God blessed them and God said to them, be fruitful and multiply³⁷⁵Gen. 1:28., etc.” Rebbi Eleazar in the Name of Rebbi Ḥanina: Practice follows Rebbi Joḥanan ben Beroqa. Rebbi Abba bar Zavda said to him, I was with you and it was only said, if she asks to be married the law is on her side³⁷⁶If a woman is married childless for ten years she may ask the court to force her husband to give her a divorce with full payment of her ketubah. In her application to the court she must state that her request is in order to be able to marry another man (who implicitly is supposed to be more fertile than the first.) In the Babli Yebamot 65b she is required to state explicitly that she wants to marry another man in order to have children who will be able to care for her in her old age.. He said about them, two are better than one³⁷⁷Eccl. 4:9..