Gittin 7:9-8:1
Gittin 7:9
Let’s say that a man says, “If I do not return within 12 months, write a get and give it to my wife” but they wrote the get within 12 months and gave it to her after 12 months. In such a case, the get is invalid. If he says, “Write a get and give it to my wife if I do not return within 12 months” and they wrote the get within 12 months and gave it to her after 12 months, the get is invalid, though Rabbi Yosi says it is valid. Let’s say that they wrote the get and delivered it after 12 months but the husband died. If the get came before he died, it is valid; if he died before the get, it is invalid. If it is unknown which event happened first, the wife is quasi-divorced (i.e., her status remains in doubt).
Gittin 8:1
If a man throws a get to his wife when she is in her house or her courtyard, then the divorce is effective. If he throws it to her when she is in his house or his courtyard, the divorce is ineffective even if it is in bed with her. If he throws the get into her lap or into her basket, the divorce is effective.