The black standard flag of Ahrar al-Sham, based on <a rel="nofollow" class="external text" href="http://i.alalam.ir/news/Image/original/2016/09/11/alalam_636092224202439603_25f_4x3.jpg">this</a>.
<a href="//commons.wikimedia.org/wiki/User:Turtle-bienhoa" title="User:Turtle-bienhoa">Turtle-bienhoa</a>
<span class="int-own-work" lang="en">Own work</span>