OK, here is the best way to do it.
Muting the letter in the end is the best.
In Arabic grammar there is a rule ;
mute the end letter to be safe of all grammar rule. ( this goes for everything )
So ; Ab'd Alah , Ab'd Al Malik .
Lemon on the lemonade ;
Also in Arabic language ( taken from Aramaic )
The letters are divided into two groups
The Sunny letters ( the sun) and The moony letters ( the Moon).
When a word has The = Al in the beginning
and after that Al there is a moony letter we pronounce the L ;
example ; M is a moony letter so we say
Ab'd Al Malik
When a word has The = Al in the beginning
and after that Al there is a sunny letter we Do not pronounce the L and we double the letter (strong );
example ; R is a sunny letter so we say
Ab'd Arrahman ( not Abd al
Rahman. )