The Halaal is clear and The Haraam is clear

That which is lawful is clear and that which is unlawful is clear, and between the two of them are doubtful matters about which many people do not know. Thus he who avoids doubtful matters clears himself in regard to his religion and his honour, but he who falls into doubtful matters [eventually] falls into that which is unlawful, like the shepherd who pastures around a sanctuary, all but grazing therein. Truly every king has a sanctuary, and truly Allaah’s sanctuary is His prohibitions. Truly in the body there is a morsel of flesh, which, if it be whole, all the body is whole, and which, if it is diseased, all of [the body] is diseased. Truly, it is the heart.

عَنْ أَبِي عَبْدِ اللَّهِ النُّعْمَانِ بْنِ بَشِيرٍ رَضِيَ اللَّهُ عَنْهُمَا، قَالَ: سَمِعْت رَسُولَ اللَّهِ صلى الله عليه و سلم يَقُولُ: إنَّ الْحَلَالَ بَيِّنٌ، وَإِنَّ الْحَرَامَ بَيِّنٌ، وَبَيْنَهُمَا أُمُورٌ مُشْتَبِهَاتٌ لَا يَعْلَمُهُنَّ كَثِيرٌ مِنْ النَّاسِ، فَمَنْ اتَّقَى الشُّبُهَاتِ فَقْد اسْتَبْرَأَ لِدِينِهِ وَعِرْضِهِ، وَمَنْ وَقَعَ فِي الشُّبُهَاتِ وَقَعَ فِي الْحَرَامِ، كَالرَّاعِي يَرْعَى حَوْلَ الْحِمَى يُوشِكُ أَنْ يَرْتَعَ فِيهِ، أَلَا وَإِنَّ لِكُلِّ مَلِكٍ حِمًى، أَلَّا وَإِنَّ حِمَى اللَّهِ مَحَارِمُهُ، أَلَّا وَإِنَّ فِي الْجَسَدِ مُضْغَةً إذَا صَلَحَتْ صَلَحَ الْجَسَدُ كُلُّهُ، وَإذَا فَسَدَتْ فَسَدَ الْجَسَدُ كُلُّهُ، أَلَا وَهِيَ الْقَلْبُ. رَوَاهُ الْبُخَارِيُّ [رقم:52]، وَمُسْلِمٌ [رقم:1599].

3an ‘Abi 3Abdillahi N3umaani Ibn Basheer(in) raDhiyAllahu anhummaa qaal: sami3tu RasoolAllahi Sal Allahu 3alaihi wa sallama yaqool:

(( ‘inna al Halaala bayyin(un), wa ‘inna al Haraama bayyin(un) wa baynahumma ‘umoorun mushtabihaat(un) la ya3lamuhunna katheerun mina al naas(i). Fa man ttaqaa ash-shubuhaat(i) faqad stabra’a lideenihi wa 3irDhihi.

wa man waqa3a fi shubuhaati waqa3a fil Haraam, ka ar raa3ee yar3aa Hawla al Himaa yooshiku ‘ay yarta3a fih.

‘a laa wa ‘inna likuli malikin Himan, ‘a laa wa ‘inna Himaa Allahi maHaarimuhu. ‘a laa wa ‘inna fil jasadi maDhghatan, idhaa SalaHat SalaHa al jasadu kulluhu, wa idhaa fasadat fasada al jasadu kulluhu, ‘a laa wa hiya al qalb)).

Rawaahu ul Bukhaari wa Muslim.