Perfect Partner

Mulla Nasruddin wanted to marry a perfect partner. Hence he went to Damascus in search and Aha! he met a woman who was very beautiful but was of medium height. As he wanted tall children Mullah rejected her.
Then after a long search he met a woman in  Baghdad who was gorgeous and tall. But here too Mullah was disappointed as she had bad voice. Mullah rejected her too.
And finally Mullah was on cloud nine when he met a tall, stunning woman with beautiful voice. Still he could not marry her and when asked by his friends why?
Mullah replied, ' I could not marry her because she was also looking for a perfect partner.'