Ramadhaan & Fasting

Q: Please explain what is forbidden during the holy month of Ramadhaan between husband and wife?

Q: A man wished to donate a kidney to his son. He went to the hospital for a test and needed to drink a liquid to check if his kidney is compatible. Therefore, he broke his fast and drank the liquid. Does kaffarah become waajib on him or not?

Q: By saying “I am not fasting”, does it break my fast?

Q: Is it incumbent upon me to pay sadaqatul fitr for the past years on my family which I was not aware off?

Q: Regarding sadaqatul fitr, a father and mother are living with their son and his family. Both parents are receiving a monthly pension. Do they have to give sadaqatul fitr separately or should the son (who is wealthy) give the sadaqatul fitr on behalf of all i.e. his family and his parents?

Q: Is the dua that we are taught for fasting "Bi sawmi ghadin nawaytu" established from Hadith? If a person makes his niyyah in the morning then should he omit the word "Ghadin"?

Q: If a person discharges sadaqatul fitr on behalf of his wife and baaligh children who are not being supported by him without their permission, will the sadaqatul fitr be discharged?

Q: If one did not discharge his sadaqatul fitr and all his wealth got destroyed, will the obligation of sadaqatul fitr fall away?

Q: If a person discharges sadaqatul fitr on behalf of someone other than his dependants (i.e. his wife and children) without their permission, will the sadaqatul fitr be discharged?

Q: If a father discharges sadaqatul fitr on behalf of his wife and baaligh children without their permission, will the sadaqatul fitr be discharged?