British Airways flight to Tehran - Joke

A British Airways flight was going to Tehran from London.
When it gets close to Tehran it starts having some kind of trouble.
The pilot contacts the air tower at Tehran airport and asks for help:
"Tehran, this Captain Smith, British Airways flight 000, do you read me?"

"Felight 000, dis iz Tehran felight contorol, go ahead"

"Tehran, this is flight 000, we have a problem"

"Dis iz Tehran, vat kind of peroblem?"

"This is flight 000, we have lost power to our engines, please advice"

"Dis iz Tehran, I reed you, peleez check some sings for me, ok?"

"This is flight 000, go ahead"

"Dis iz Tehran, can you get emerzency pover to your enzines?"

"This is flight 000, negative, no power is available"

"Dis iz Tehran, can you peleez bering your altitutde to 20,000 feet?"

"This is flight 000, negative, our wing controls do not respond"

"Dis iz Tehran, can you peleez see if you can lover your veels?"

"This is flight 000, negative, landing gears are stuck"

"Dis iz Tehran, vould you peleez repeet theez vords after me"

"This is flight 000, go ahead"

"Dis iz Tehran, repeet theez words peleez:

ASH'HADO ANNA LA ILAHA ELLALLAH VA ASH'HADO ANNA MOHAMMADAN RASUL ALLAH"