Actually neither Amah knew those answers nor Alwardah. With the fear of impositions both of u did not answer.
Well. seriously speaking Jazakallah for your suggestion Amah. I thought of answering once when attempted by any.Sign Reader, We thank u for answering those questions.May Allah reward u too.
1. Who was the sahaba whom Allah chose to host Prophet sallal lahu alaihi wasallam when migrated to Madinah?
Yes, its Abu Ayub Ansari {RA}. who's real name was Khalid bin Zaid Its very intresting story as how he got a chance to host our Prophet {SAWS}. Prophet SAWS was mounted over a she-camel and it proceeded on towards the city. People were very eager to welcome
him. They kept there doors open and wished to host The Prophet SAWS. As the Camel was moving on by Allah's command, people, wished it to stand before there homes. With lots of hope they awaited for the Camel, but there faces turned pale and sad when it did not stop. Atlast the camel knelt down before Ayub Ansari RA 's house and a yard between. Thus, he was those luckiest sahaba whom Allah ta'ala has chosen him to host Prophet SAWS for about seven months.
3.Which was the first built mosque during the Prophethood of Muhammad sallal lahu alaihi wasallam?
When Prophet saws entered Madina, he stayed with Bani 'Amr Ibn Auf for ten nights and there established Mosque of
Quba which was founded on piety. Allah encouraged His Prophet to pray in Masjid Quba' which, from the first day, was built on Taqwa, obedience to Allah and His Messenger , for gathering the word of the believers and as an outpost and a fort for Islam and its people. This is why Allah the Exalted said,
(Verily, the Masjid whose foundation was laid from the first day on Taqwa is more worthy that you stand therein (to pray).) in reference to the Masjid of Quba'.
An authentic Hadith records that the Messenger of Allah said,(One prayer in Masjid Quba' is just like an `Umrah.) It is recorded in the Sahih that the Messenger of Allah used to visit Masjid Quba' while riding and walking.
4. What are the etiquettes while drinking water?
Start up with Bismillah. Drink in three sips and then say Alhamdullilah.
5.Ayesha RA,- Was she married to our Prophet SAWS, before or after Hijrah?
Yes, its after Hijrah.