Impermissible Acts & Qadhaa

Q: If a person making sunnat itikaaf left the musjid mistakenly, does he have to repeat all 10 days or just one. 

Also what should a person do after his itikaaf is broken, should he continue or go home?

Q: A school student wants to sit for Itikaaf but he will have to do online school in Itikaaf. Is he allowed to do this while in Sunnah Itikaaf? 

Is a university student allowed to study his text book material in the Masjid? 

Is a working class person allowed to take his laptop with in Sunnah Itikaaf and do his work?

Q: A person has wudhu and wants to go make a fresh wudhu during sunnah itikaaf. Is it permitted?

Q: A brother made intention to spend the last 10 days of Ramadhaan for i'tikāf. On the second day, due to a person passing away in his family (non-Muslim) his dad wanted him to leave his i'tikāf because he (his dad) had to go to the deceased's home and it would take a few days for him to return. So his dad wanted him to break his i'tikaf to look after his home and animals (pets). The brother had no choice but to break his i'tikaf on the second day.

1. How does he have to do qadhaa of his i'tikaf?

2. He intends to do qadhaa of his i'tikaf this Ramadhaan Insha Allah so will the fast in Ramadhaan suffice for him to keep his i'tikaf or does he have to keep fast outside of Ramadhaan to make up his qadhaa.

3. How many days does he have to do qadhaa for, 1 or 10 days. 

Q: Please explain how will one need to make qadha of his sunnah itikaaf.

Q: Can a person come out of the musjid to perform a sunnah wudhu while in sunnah I'tikaaf?

Q: When one is sitting in itikaaf can one go for ghusal to cool of or the Friday sunnah gusl? If yes for Sunnah gusl than what if the gusl khana is not near the wudu khana; its upstairs. Can one go for ghsal upstairs?

Q: Can a person sitting for Sunnat i'tikaaf come out of the musjid to perform? Someone quoted the sayings of Saahibain i.e. that a person does not have to spend the entire day in the musjid rather he must spend most amount of the day in the musjid.

Q: Can a person in i’tikaaf have a Friday bath with the intention that it is sunnah? Is it better for him not to have the Friday bath? 

Q: Is it permissible for a person sitting in sunnah i’tikaaf to leave the musjid to smoke?