Ar-Ra'd

Ar-Ra'd, , or the Thunder, is the 13th chapter (<a href="/facts/S%C5%ABrah/SlvRy3DG">sūrah</a>) of the <a href="/facts/Qur%27an/39rkStko">Qur'an</a>, composed of 43 verses (<a href="/facts/%C4%80y%C4%81t/ohBUHBQ2">āyāt</a>). It has <a href="/facts/Muqatta%27at/0amauwTa">Muqattat</a> (Quranic initials) <a href="http://tanzil.net/#13:1">المر</a> (Alif. Lam. Mim. Ra or ALMR).
Verse 15 contains a <a href="/facts/Prostration_in_Islam/Kvr9eY7d">prostration</a> symbol <a href="/facts/%DB%A9/FMJLqS7P">۩</a>:

<a href="/facts/%DB%9D/ohBUHBQ2">۝</a><a class="footnote-ref" id="fnref:3" href="#fn:3">3</a> Whatsoever is in heaven and on earth worshippeth GOD, voluntarily or of force; and their shadows also, morning and evening. ۩ <a class="footnote-ref" id="fnref:4" href="#fn:4">4</a>
This sūrah is concerned with the oneness of God, the message, the <a href="/facts/Day_of_judgement/x5dW2R4x">Day of judgement</a>, and the penalty. The <a href="/facts/S%C5%ABrah/SlvRy3DG">sūrah</a> revolves around an important axis that what is truth is clear through power and stability; what is falsehood is clear through its weakness. The verses call upon people to not be deceived by the glitter of falsehood because it is inevitably fleeting, while the truth shines throughout the entire universe. 
The name of the sūrah is from the word (Ar-Ra'd) (Thunder) in the 13th <a href="/facts/%C4%80yah/ohBUHBQ2">ayah</a>.

Ar-Ra'd open-in-new

Ar-Ra'd