An-Nisa 4:25 ومن لم يستطع منكم طولا ان ينكح المحصنات المومنات فمن ما ملكت ايمانكم من فتياتكم المومنات والله اعلم بايمانكم بعضكم من بعض فانكحوهن باذن اهلهن واتوهن اجورهن بالمعروف محصنات غير مسافحات ولا متخذات اخدان فاذا احصن فان اتين بفاحشة فعليهن نصف ما على المحصنات من العذاب ذالك لمن خشي العنت منكم وان تصبروا خير لكم والله غفور رحيم ٢٥

And whoso is not able to afford to marry free, believing women, let them marry from the believing maids whom your right hands possess. Allah knoweth best (concerning) your faith. Ye (proceed) one from another; so wed them by permission of their folk, and give unto them their portions in kindness, they being honest, not debauched nor of loose conduct. And if when they are honourably married they commit lewdness they shall incur the half of the punishment (prescribed) for free women (in that case). This is for him among you who feareth to commit sin. But to have patience would be better for you. Allah is Forgiving, Merciful.