Salaah

Q: Is doing dua after azan permissible in Islam?

Q: What's the ruling on joining two salaahs as a musafir?

Q: What are the consequences if one prays Namaz with their clothes covering below the ankles ?

Q: I want to go to visit my parents after two years. I don't have enough money for traveling with two persons. I live in Canada and my parents live in Pakistan. If I go alone to Pakistan with complete pardah, is it permissible for traveling because tickets are two expensive.

Q: What is the ruling on person who uses his hands for itching, folding sleeves, etc. during prayer? When will prayer be invalidated?

Q: I'm a hanafi by maslakh. My question is about qaza e umri. Is qaza e umri to be offered or not. If yes please give the daleel in the light of Qur'an and Hadith. Few of my friends confused me as I don't have the daleel.

Q:

1. I want to ask if it is permissible to pray Namaz behind such a person who is wearing clothing below the ankles and half sleeve shirt and also a clean shaven beard?

2. Is is permissible to tell him to keep his clothes above the ankles and wear full sleeve shirt ?

Q: If during the 4 rakaah prayers of zuhr or asr during the qaaidah after 2nd rakaat I recite Durood sharif (complete or some part of it) by mistake with Tashahhud.Then should I do sajdah sahw?

Q: Is it alright to pray behind someone sitting in the mosque? And if someone is praying right behind me, can I move or get up from from that place?

Q: Ahl as Salaf, who dont follow Taqleed, consider saying رب اغفرلى while sitting between two sujud in Salah as waajib. They also consider 9 Arkaan in salaah, although Hanafi maslak considers 4. What is the ruling for praying behind them?