Assalamualaikum I would like to know if a non-Quresh can become a leader of the Muslims
Alaikumassalam wa rahmatullah,
There are a few hadiths that say the caliphate is only for Quraysh. But since the caliphate no longer exists and since there is no strong evidence that it is obligatory on Muslims to have a caliphate, this is no longer relevant. The leader of a Muslim state can be from any tribe or ethnicity.