What is meant by the statement: “A woman must observe the waiting period in the house in which her husband died while she was in it”?

The questioner : Is the requirement to observe the waiting period in the house where her husband died while she was in it absolute, even if they were, for example, on a visit or as guests?

The Shaykh : The phrase “while she was in it” means that she was residing in it. However, if her husband died and she received the news while she was visiting her relatives, meaning she was in their house, then she must go to her husband’s house. Likewise, if her husband died in the hospital while she was nursing him there, she must return to her home.