Question:

Assalamu alaykum, My question is that can you ask Allah anything like due'a, you can ask Allah any dua you want right like, o allah make me smart, or give me beauty, will Allah except this dua , please let me know insha allah assalamu alaykum

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His Slave and Messenger.

There are some etiquettes for supplication that should be observed, and a person is not totally free to ask whatever he wants without restrictions, rather it is forbidden to exceed the limits when supplicating. It is reported that 'Abdullaah Ibn Mughaffal, may Allah be pleased with him, narrated: "I heard the Prophet saying: ''There will be people among this (Muslim) nation who would exceed the limits in ritual purification and in supplication." [Ahmad and Abu Daawood]

Exceeding the limits when supplicating is, for example, when one supplicates for something which contradicts the wisdom of Allah in creating people with a certain share of beauty that could be less than others. Ibn Taymiyyah said: 'To exceed the limits when supplicating is to ask for what one is not permitted to ask for, like supplicating for help in forbidden matters, or when supplicating for something which Allah has willed not to do, like asking Him to make one live until the Day of Judgement, or to make him stand free of basic necessities of human beings like food and drink, or to ask Allah to show him the unseen, or to make him infallible, or to bless him with children without being married, and other forms supplications that exceed the limits, and which Allah does not like, and does not like the person who supplicates with them.'