4:24
وَّالْمُحْصَنٰتُ مِنَ النِّسَآءِ اِلَّا مَا مَلَكَتْ اَیْمَانُكُمْ ۚ كِتٰبَ اللّٰهِ عَلَیْكُمْ ۚ وَاُحِلَّ لَكُمْ مَّا وَرَآءَ ذٰلِكُمْ اَنْ تَبْتَغُوْا بِاَمْوَالِكُمْ مُّحْصِنِیْنَ غَیْرَ مُسٰفِحِیْنَ ؕ فَمَا اسْتَمْتَعْتُمْ بِهٖ مِنْهُنَّ فَاٰتُوْهُنَّ اُجُوْرَهُنَّ فَرِیْضَةً ؕ وَلَا جُنَاحَ عَلَیْكُمْ فِیْمَا تَرٰضَیْتُمْ بِهٖ مِنْ بَعْدِ الْفَرِیْضَةِ ؕ اِنَّ اللّٰهَ كَانَ عَلِیْمًا حَكِیْمًا ۟
Saheeh International
And [also prohibited to you are all] married women except those your right hands possess. [This is] the decree of Allāh upon you. And lawful to you are [all others] beyond these, [provided] that you seek them [in marriage] with [gifts from] your property, desiring chastity, not unlawful sexual intercourse. So for whatever you enjoy [of marriage] from them, give them their due compensation as an obligation. And there is no blame upon you for what you mutually agree to beyond the obligation. Indeed, Allāh is ever Knowing and Wise.