Best Answer - Chosen by Voting
"Al" is a definite article like
"the" in english, der/die/das in german, le/la in french
but unlike the other languages, there is only one form for it, whether for male or female
it is used to specify a certain object, instead of being anonymous
exactly as in the example of the car posted by gamell
now here,
"zain hamdullilah" doesn't really make a lot of sense to me. This word "hamdullilah" is normally associated with "Al" which is fairly logical because it would literally translate to "The Thanks to God" since you are specifying a certain situation or a blessing upon whom you thank God for..so 'The Thanks for this situation/blessing is to God'...
But in any case, whichever way you say it, people will understand you
it's just a matter of which is more correct :)
Good Luck
