all that we have mentioned is according to the level of greed. if greed is cut off from something for some reasons that justify it the soul will incline toward what it desires. we find that the one who acknowledges seeing allah the almighty is very yearning for it and has great yearning for it and is not satisfied with a degree less than that because he desires it. we find that the one who denies it does not yearn for it or desire it at all because he does not desire it and we find that he limits himself to contentment and residing in the abode of honor only because his soul does not desire more. we find that the one who permits marriage to female relatives is not satisfied with what the one who is forbidden from it is satisfied with and his love does not stop where the love of the one who does not desire that stops. we find that the one who permits marriage to his daughter or his brothers daughter like the magians and jews does not stop in his love for them where the muslim stops rather we find them in love with the daughter and the brothers daughter as the muslim in love with the one he desires to have sexual intercourse with. we do not find a muslim who reaches that level with them even if they are more beautiful than the sun and he is the most promiscuous and lascivious of people. if this is found in rarity then you will not find it except from a person who is corrupt in religion from whom that deterrent has been removed so hope has become spacious for him and the door of greed has opened for him. and it is not safe for a muslim to not love his cousin excessively until it becomes infatuation and until his love for her exceeds his love for his daughter and his brothers daughter even if she is more beautiful than her because he hopes to reach his cousin when he does not hope to reach his daughter and his brothers daughter. and we find that the christian is safe from this from himself in his cousin also because he does not hope for that from her and he is not safe from this from himself in his foster sister because he is greedy for her according to his law.
وكل ما ذكرنا، إنما هو على قدر الطمع. فإذا انحسم الطمع عن شيء ما لبعض الأسباب الموجبة له مالت النفس إلى ما تطمع فيه. ونجد المقر بالرؤية ونجد المقر بالرؤية لله عز وجل شديد الحنين اليها عظيم التروح نحوها، لا يقنع بدرجة دونها لأنه يطمع فيها، ونجد المنكر لها لا تحن نفسه إلى ذلك ولا يتمناه أصلا لأنه لا يطمع فيه، ونجده يقتصر على الرضى والحلول في دار الكرامة فقط، لأنه لا تطمع نفسه في أكثر. ونجد المستحل لنكاح القرائب لا يقنع منهن بما يقنع المحرم لذلك، ولا تقف محبته حيث تقف محبة من لا يطمع في ذلك. فنجد من يستحل نكاح ابنته وابنة أخيه كالمجوس واليهود لا يقف من محبتهما حيث يقف المسلم، بل نجدهما يتعشقان الابنة وابنة الأخ كتعشق المسلم من يطمع في مخالطته بالجماع. ولا نجد مسلما يبلغ ذلك. فيهما ولو أنهما أجمل من الشمس، وكان هو أعهر الناس وأغزلهم. فان وجد ذلك في الندرة فلا تجده الا من فاسد الدين، قد زال عنه ذلك الرادع فانفسح له الأمل وانفتح له باب الطمع. ولا يؤمن من المسلم أن تفرط محبته لابنة عمه لحا حتى تصير عشقا وحتى تتجاوز محبته لها محبته لابنته وابنة أخيه وان كانت اجمل منها، لأنه يطمع من الوصول إلى ابنة عمه حيث لا يطمع من الوصول إلى ابنته وابنة أخيه. ونجد النصراني قد أمن ذلك من نفسه في ابنة عمه أيضا لأنه لا يطمع منها في ذلك ولا يأمن ذلك من نفسه في أخته من الرضاعة لأنه طامع بها في شرعته .