[forumsfavoriteall]

Here are the relevant references for the brothers statement above:

29 وَالَّذِينَ هُمْ لِفُرُوجِهِمْ حَافِظُونَ
30 إِلَّا عَلَىٰ أَزْوَاجِهِمْ أَوْ مَا مَلَكَتْ أَيْمَانُهُمْ فَإِنَّهُمْ غَيْرُ مَلُومِينَ
31 فَمَنِ ابْتَغَىٰ وَرَاءَ ذَ*ٰلِكَ فَأُولَـٰئِكَ هُمُ الْعَادُونَ

Translation (Abdullah Yusuf 'Ali):

29 And those who guard their chastity,
30 Except with their wives and the (captives) whom their right hands possess,- for (then) they are not to be blamed,
31 But those who trespass beyond this are transgressors;

(al-Qur'an, 70:29-31)

Under this Ayah in Tafseer Ibn Katheer, it is stated that Imam al-Shafi'i utilised that verse as proof that masturbation was Haram, because Allah only gave two "legal" methods to fulfil the desires of the private parts [1] Wife [2] Slaves and called paths other than this as transgression, here is the relevant text:

وَقَدْ اِسْتَدَلَّ الْإِمَام الشَّافِعِيّ رَحِمَهُ اللَّه وَمَنْ وَافَقَهُ عَلَى تَحْرِيم الِاسْتِمْنَاء بِالْيَدِ بِهَذِهِ الْآيَة الْكَرِيمَة " وَاَلَّذِينَ هُمْ لِفُرُوجِهِمْ حَافِظُونَ إِلَّا عَلَى أَزْوَاجهمْ أَوْ مَا مَلَكَتْ أَيْمَانهمْ " قَالَ فَهَذَا الصَّنِيع خَارِج عَنْ هَذَيْنِ الْقِسْمَيْنِ وَقَدْ قَالَ اللَّه تَعَالَى" فَمَنْ اِبْتَغَى وَرَاء ذَلِكَ فَأُولَئِكَ هُمْ الْعَادُونَ "

Rasulullah said as mentioned in Sahih Muslim the young men if they can afford to get married, should get married (he gave a command), and he said those that cannot afford it should fast (again a command):

http://www.islamweb.net/newlibrary/d...bk_no=1&ID=613

يا معشر الشباب من استطاع منكم الباءة فليتزوج فإنه [ ص: 1019 ] أغض للبصر وأحصن للفرج ومن لم يستطع فعليه بالصوم فإنه له وجاء

Translation:

“O young men, whoever among you can afford it, let him get married, and whoever cannot afford it should fast, for it will be a shield for him.”

He didn't give a option of masturbation. It is Haram by consensus.

Wallahu A'lam.