Distance yourself from matters of doubt since what is permissible or prohibited has already been made clear

I heard Messenger of Allah (may peace be upon himn) as having said this (and Nu'man) pointed towards his ears with his fingers): What is lawful is evident and what is unlawful is evident, and in between them are the things doubtful which many people do not know. So he who guards against doubtful things keeps his religion and honour blameless, and he who indulges in doubtful things indulges in fact in unlawful things, just as a shepherd who pastures his animals round a preserve will soon pasture them in it. Beware, every king has a preserve, and the things God his declaced unlawful are His preserves. Beware, in the body there is a piece of flesh; if it is sound, the whole body is sound and if it is corrupt the whole body is corrupt, and hearken it is the heart.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ، وَأَهْوَى النُّعْمَانُ بِإِصْبَعَيْهِ إِلَى أُذُنَيْهِ: «إِنَّ الْحَلاَلَ بَيِّنٌ وَإِنَّ الْحَرَامَ بَيِّنٌ، وَبَيْنَهُمَا مُشْتَبِهَاتٌ لاَ يَعْلَمُهُنَّ كَثِيرٌ مِنَ النَّاسِ۔ فَمَنِ اتَّقَى الشُّبُهَاتِ اسْتَبْرَأَ لِدِينِهِ وَعِرْضِهِ، وَمَنْ وَقَعَ فِي الشُّبُهَاتِ وَقَعَ فِي الْحَرَامِ كَالرَّاعِي يَرْعَى حَوْلَ الْحِمَى يُوشِكُ أَنْ يَرْتَعَ فِيهِ۔ أَلاَ وَإِنَّ لِكُلِّ مَلِكٍ حِمًى۔ أَلاَ وَإِنَّ حِمَى اللَّهِ مَحَارِمُهُ۔ أَلاَ وَإِنَّ فِي الْجَسَدِ مُضْغَةً إِذَا صَلَحَتْ صَلَحَ الْجَسَدُ كُلُّهُ، وَإِذَا فَسَدَتْ فَسَدَ الْجَسَدُ كُلُّهُ۔ أَلاَ وَهِيَ الْقَلْبُ۔»  

"The lawful is clear and the unlawful is clear, and between that are matters that are doubtful (not clear); many of the people do not know whether it is lawful or unlawful. So whoever leaves it to protect his religion and his honor, then he will be safe, and whoever falls into something from them, then he soon will have fallen into the unlawful. Just like if someone grazes (his animals) around a sanctuary, he would soon wind up in it. Indeed for every king is a sanctuary (pasture), and indeed Allah's sanctuary is what He made unlawful."  

سَمِعْتُ رَسُولَ اللَّهُ ﷺ يَقُولُ الْحَلاَلُ بَيِّنٌ وَالْحَرَامُ بَيِّنٌ وَبَيْنَ ذَلِكَ أُمُورٌ مُشْتَبِهَاتٌ لاَ يَدْرِي كَثِيرٌ مِنَ النَّاسِ أَمِنَ الْحَلاَلِ هِيَ أَمْ مِنَ الْحَرَامِ فَمَنْ تَرَكَهَا اسْتِبْرَاءً لِدِينِهِ وَعِرْضِهِ فَقَدْ سَلِمَ وَمَنْ وَاقَعَ شَيْئًا مِنْهَا يُوشِكُ أَنْ يُوَاقِعَ الْحَرَامَ كَمَا أَنَّهُ مَنْ يَرْعَى حَوْلَ الْحِمَى يُوشِكُ أَنْ يُوَاقِعَهُ أَلاَ وَإِنَّ لِكُلِّ مَلِكٍ حِمًى أَلاَ وَإِنَّ حِمَى اللَّهِ مَحَارِمُهُ  

“I heard the Messenger of Allah ﷺ say: ‘That which is lawful is plain and that which is unlawful is plain, and between them are matters that are not clear, about which not many people know. Thus he who guards against the unclear matters, he clears himself with regard to his religion and his honor. But he who falls into the unclear matters, he falls into that which is unlawful. Like the shepherd who pastures around a sanctuary, all but grazing therein. Every king has a sanctuary. And beware! Allah’s sanctuary is His prohibitions. Beware! In the body there is a piece of flesh which, if it is sound, the whole body will be sound, and if it is corrupt, the whole body will be corrupt. It is the heart.’”  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ الْحَلاَلُ بَيِّنٌ وَالْحَرَامُ بَيِّنٌ وَبَيْنَهُمَا مُشْتَبِهَاتٌ لاَ يَعْلَمُهَا كَثِيرٌ مِنَ النَّاسِ فَمَنِ اتَّقَى الشُّبُهَاتِ اسْتَبْرَأَ لِدِينِهِ وَعِرْضِهِ وَمَنْ وَقَعَ فِي الشُّبُهَاتِ وَقَعَ فِي الْحَرَامِ كَالرَّاعِي حَوْلَ الْحِمَى يُوشِكُ أَنْ يَرْتَعَ فِيهِ أَلاَ وَإِنَّ لِكُلِّ مَلِكٍ حِمًى أَلاَ وَإِنَّ حِمَى اللَّهِ مَحَارِمُهُ أَلاَ وَإِنَّ فِي الْجَسَدِ مُضْغَةً إِذَا صَلُحَتْ صَلُحَ الْجَسَدُ كُلُّهُ وَإِذَا فَسَدَتْ فَسَدَ الْجَسَدُ كُلُّهُ أَلاَ وَهِيَ الْقَلْبُ  

“I heard the Messenger of Allah ﷺ say: ‘That which is lawful is plain and that which is unlawful is plain, and between them are matters that are not clear, about which not many people know. Thus he who guards against the unclear matters, he clears himself with regard to his religion and his honor. But he who falls into the unclear matters, he falls into that which is unlawful. Like the shepherd who pastures around a sanctuary, all but grazing therein. Every king has a sanctuary. And beware! Allah’s sanctuary is His prohibitions. Beware! In the body there is a piece of flesh which, if it is sound, the whole body will be sound, and if it is corrupt, the whole body will be corrupt. It is the heart.’” (Using translation from Ibn Mājah 3984)  

وَسَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ إِنَّ الْحَلَالَ بَيِّنٌ وَالْحَرَامَ بَيِّنٌ وَبَيْنَهُمَا مُشْتَبِهَاتٌ لَا يَعْلَمُهَا كَثِيرٌ مِنَ النَّاسِ فَمَنِ اتَّقَى الشُّبُهَاتِ اسْتَبْرَأَ فِيهِ لِدِينِهِ وَعِرْضِهِ وَمَنْ وَاقَعَهَا وَاقَعَ الْحَرَامَ كَالرَّاعِي يَرْعَى حَوْلَ الْحِمَى يُوشِكُ أَنْ يَرْتَعَ فِيهِ أَلَا وَإِنَّ لِكُلِّ مَلِكٍ حِمًى وَإِنَّ حِمَى اللهِ مَا حَرَّمَ أَلَا وَإِنَّ فِي الْإِنْسَانِ مُضْغَةً إِذَا صَلُحَتْ صَلُحَ الْجَسَدُ كُلُّهُ وَإِذَا فَسَدَتْ فَسَدَ الْجَسَدُ كُلُّهُ أَلَا وَهِيَ الْقَلْبُ