Related for Bava Batra 292:6
ורב נחמן מאי טעמא לא מוקים לה כרבי שמעון שזורי שאני התם דאמר כתבו ורב ששת מ"ט לא מוקים לה כרבי שמעון בן מנסיא אומדנא דמוכח שאני
said, 'Write a bill of divorce for my wife', It is to be written and delivered [to her];<span class="x" onmousemove="('comment',' Though he only authorized the writing of the divorce, and not its delivery, it is assumed that he had forgotten to mention the latter owing to the perturbed state of his mind ');"><sup>21</sup></span> later, however, It was held<span class="x" onmousemove="('comment',' Lit., 'they returned to say'. ');"><sup>22</sup></span> [that the same law applies] also [to] one who goes out [to sea] or on a caravan [journey]. R. Simeon Shezuri said: [The same law] also [applies to one] who is dangerously [ill]<span class="x" onmousemove="('comment',' Because it is assumed that his motive and intentions were to have his wife divorced so that she might be exempt from the levirate marriage and from halizah.. Since the same principles of motive and intention underlie the law of our Mishnah, it may be taken to represent the view of R. Simeon Shezuri. ');"><sup>23</sup></span> For what reason, however, does not R. Nahman establish it<span class="x" onmousemove="('comment',' Our Mishnah. ');"><sup>24</sup></span>