What is the ruling on the remembrances for sleep if a person recites them, then gets up and returns? Does he have to repeat them?

The questioner : Shaykh, may Allah bless you. This dhikr and its like, which is recited at the time of sleep, if a person recites it and has already taken his sleeping position, then... the remembrances, then... he gets up, does he have to repeat the remembrances?

The Shaykh : It appears that if he returns from a short absence, such as getting up to perform wudu and returning, or getting up to open the door and returning quickly, there is no need to repeat them. However, if the interval is long, he should repeat them.