Breaking the Salaah

Intending to perform nafil salaah or to keep nafil fast

Q: In the one instance, one makes intention to keep a nafil fast or to perform a nafil salaat. But then, at the appropriate time, one changes one’s mind and does not keep the fast or perform the nafil salaat. In the second instance, one had already commenced performing nafil salaat but when one’s wudhu broke, one did not renew one’s wudhu and abandoned performing the nafil salaat. In the first instance, is it now mandatory to fast and perform the nafil salaat one had intended to perform? And, in the second instance, does performing the abandoned nafil salaat also become mandatory?

Being called while performing Salaah

Q: If a person is praying Zuhr salah at home and a family member calls him from another room, what is the best way to notify the family member that he is in Salaah? Is it ok for him to recite his qira'ah loudly for 1-2 seconds to show that he is praying (even if it is Zuhr salat), or should he say "subhaanallah" loudly or is there any better way?

Breaking one's Salaah

Q:

1) If a person's mother calls her whilst she is reading Salaah , and she is not sure if it's urgent or not, does she have to break her Salaah? Is there a difference if it's fardh or sunnat salaah?

2) If a person's husband is stuck outside the house because the door is locked with the key in and a lady is performing her Salaah, and the husband needs to come in then get farigh and proceed to musjid, should she break her Salaah. Again is there a difference if it's faraaid or Sunnats?