salaatul haajat

Q:

1. Salatul Haajat Namaz, Salatul Istekhara Namaz, Kaza E Umri, etc., are all of them mentioned in the Quran and Hadees?

2. If yes, which aayaat and Hadees?

Q: My husband and me were happy at the beginning when we newly got married. Many people were jelous of our couple. We have had black magic done on our families many years ago. Is there any way we could remove blackmagic if someone has done it on me and my husband? How would I know and how would we remove it?

Then there came a point where my husband is using the word talaq and signing papers to me with no intention gesture alluding to us. His now always threatening to leave me and tells me how much he hates me and how his forced to be in the smae room as me and with me and now he has left for 2 weeks. After two weeks he puts an act on infront of my father showing remorse like he always has but never had meant it as I've forgiven him a number of times but his always stubborn on the wrong. We have not allowed him to enter this house and I have said you could only have me and my son if you by a house not because of money etc but to make him know the responsiblity of being a father and husband. Is there any wazifas or duas I could read? What should I do?

Q: What is the Sunnah method of performing Salaatul Haajat?