Various masaail of Nikaah

Q: If I marry a Muslim male who skips namaaz, will my nikaah with him become invalid?

Q: My spouse uttered words of kufr. She renewed her Imaan by reciting one or both kalimas, i.e. she may have recited first Kalima only or second Kalima only or both of them. I cannot now recall. She also recited Imaan-e-Mujmal and Imaan-e-mufassal and made tauba. Nikah was then re-performed. Is the Nikah valid even though she may have recited only one of the two kalimas? I do suffer from very bad waswasa regarding these matters, so please bear this in mind when answering.

Q: Is it permissible for the husband and wife to live in separate homes because the wife can't live with the conditions and complications of brother in-law and his wife?

Q: Does it say anywhere in Qur'an or Hadith that it is ok for a man to keep his wife with their parents and his brother? From my understanding he needs to give full ownership (meaning like the keys of the house showing full trust) of house to his wife and if he affords he should keep his wife in a separate place not in same with his brothers and parents.

Q: I want to asks how does Islam guide us about Married life. Up to what age should a child be kept with father/mother in their private room. As children grow, spouses feel problems in their private life. Please guide me according to Islamic teachings.

Q: Is it permissible in Islam to remain unmarried for a girl? I mean I am twenty two years old. I don't want to do nikaah to anyone. I want to live my life without marriage and also being in the ibaadat of Allah Ta'ala till my last breath. According to Islam, is it permissible?

Q: Is it compulsory on the wife to seek her husband's permission before leaving the home if she wishes to go to her father's home? 

Q: I want to ask what is the Islamic ruling when few families stay in one house. Is it prohibited in Islam? Please guide me in detail. I am married and I have my little brother with my father and mother. We are living together. How should purda be observed among the non-mahrams of the home?

Q: My fiance is a converted muslim. His father was a Hindu. On the nikah nama what name should be used in place of fathers name? My family does not want to use a Hindu name. Can we write a Muslim relatives name? Will the nikaah be valid if using a fake name? What name should we use while performing the nikah. Can the fathers name be avoided?

Q: I would like to ask you if a sister in-law shakes hands with her brother in-law and hugs him does his nikaah brake and also if the brother in-law shakes the sister in-laws hands and hugs her and stands next to her where their elbows and arms are touching? Please let me know as soon as possible.