<prompt> Translate the following text to SwahiliI did not, of course, know at the time that the will in question had only been made this afternoon, and I will admit that, when I learnt that fact, I fell into a grievous error.  <response>: Bila shaka sikujua wakati huo kwamba hati hiyo ilikuwa imefanywa mchana huu tu, na nitakubali kwamba nilipogundua ukweli huo, nilifanya kosa kubwa. 