Authentication

Disbelievers in the time of Nabi Nooh (alaihis salaam) afflicted with a skin disease

Q: I want to know if this is authentic: 

When Nooh (alaihis salaam) was building his ark then the disbelievers came and defecated on the ship. Allah Ta'ala sent a certain skin disease upon these people which they had no cure for. So one disbeliever with the disease slips near the ship and falls into the faeces then realizes he has been cured. All disbelievers then came and cleaned the ship by applying all the faeces to their own bodies.

Rasulullah (sallallahu alaihi wasallam) taking an oath that he will not have relations with Maria Qibtia (radhiyallahu anha)

Q: There are some ahaadeeth like the one quoted by Maulana Maududi which states that the Holy Prophet (sallallahu alaihi wasallam) had intercourse with Maria Qibtia (radhiyallahu anha) and he then swore never to have intercourse with her after facing pressure from Hazrat Ayesha and Hamza (radhiyallahu anhuma)... Is it true?

Virtue of fasting in Rajab

Q: An uncle told me that “… if you fast in rajab Allah Ta'ala on the day of judgment will give you a drink from His own hands from the river of Rajab which is whiter than milk sweeter than honey…”

I did some research and didn’t find any Hadith claiming this and I found out that there isn’t any evidence to back there being a specific reward for fasting during Rajab. I didn’t respond to his text to avoid trouble. My family is South Asian and bidah/cultural practices are rife.

Authenticity of a hadith regarding duas being accepted during childbirth/labour

Q: I came across some information a few years ago, which I don't remember the source. I am now pregnant alhamdulilah and I would like to verify this information as I cannot find anything in my Islamic literature.

Is true that dua is accepted during childbirth/labour? If so, please can you provide any basis.