Salaah

Doubts in Salaah

Q: Today at zuhr I had experienced a lot of doubts in the prayer and here is the list:

1. Weak doubt happened after sujood about back being straight in 1st rak'ah.

2. Whether accidentally extending the meem in Sami Allaahu liman hamidah, unsure.

3. In my 3rd rak'ah I stood straight up from sujood, and then doubted whether I made two sujood or not, as I was already standing I didn't go back and I could only be firm in that I definitely made 1 sujood but doubtful about 2nd and as 2 sujood is one of the essentials for a valid rak'ah I made full Tashahhud in my 4th rak'ah and stood up to let that 4th rak'ah take the place of the third in which I doubted the two sujood.

4. In the replacement rak'ah I doubted saying Rabbi instead of Rabbil Aalameen, but it's a very weak doubt.

5. During the sujood I then rose and again doubted whether I did 1 or 2 sujood, I think after beginning Tashahhud or maybe before. It seems like a pressure doubt, as. I don't want my salaah to be invalid. Anyway I recall having Rabbighfirlee in my mind and this just leads me to thinking its probably a doubt, "but what if its not?" 

Then during this with my wandering thoughts, after the Shahadah I said something starting with ashhadu and ending in Qadeer, but before that I already said the Shahadah so I repeated it mistakenly, even though I said something different.

Then said salaams and did two sujood out of forgetfulness and even in here I  doubted about saying the full durood.

What should I do? I have regular doubts affecting me in prayer and Wudoo'. Do I repeat the prayer?

Performing Salaah behind an Imaam that trims his beard

Q: I was travelling through a certain town two Fridays ago and the Aalim that performed the Jummah Bayaan, Khutbah and Namaaz clearly had a shortened and trimmed beard. I enquired from the local people who informed me that he is an Aalim. They also informed me that the trustees and imaam are all aware of this and have done nothing about it. I was a traveller and wanted to find out what will be the status of my Salaah?

Witr Salaah

Q: In Deoband the Ulama say witr prayer in Kaaba is not valid and we need to repeat it as it remains due. Is this correct? Also, can one pray 1 or 3 or 5 rakats in witr?