user115763: i make a mistake  and transfer my bitcoin to someone I really don't know who is how could i get back the money ?
لقد قمت في ارسال المال لمحفظه  شخص  انا لا اعرفه كيف لي ان استرد المال ؟

user13866: 
how could i get back the money?

You can't.
Bitcoin transactions cannot be reversed, cancelled or undone.

[I transferred] my bitcoin to someone I really don't know

If you have contact details for the person, you can ask them if they are willing to create a new transaction to send some money back to you.
If you only know a Bitcoin address, you cannot get contact details from that address. A bitcoin address does not identify a person, a place or a business. It is just a number, effectively a random number.

115763: <p>i make a mistake  and transfer my bitcoin to someone I really don't know who is how could i get back the money ?
لقد قمت في ارسال المال لمحفظه  شخص  انا لا اعرفه كيف لي ان استرد المال ؟</p>
 13866: <blockquote>
<p><strong>how could i get back the money?</strong></p>
</blockquote>
<p>You can't.</p>
<p>Bitcoin transactions cannot be reversed, cancelled or undone.</p>
<blockquote>
<p><strong>[I transferred] my bitcoin to someone I really don't know</strong></p>
</blockquote>
<p>If you have contact details for the person, you can ask them if they are willing to create a new transaction to send some money back to you.</p>
<p>If you only know a Bitcoin address, you cannot get contact details from that address. A bitcoin address does not identify a person, a place or a business. It is just a number, effectively a random number.</p>
