It is narrated from Sayyiduna Ammar bin Yasir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The lawful is clear and the unlawful is clear, and between them are doubtful matters. Whoever guards himself against the doubtful matters is more God-fearing in protecting his religion, and whoever falls into them will soon fall into the major sins, like a shepherd grazing (his flock) at the edge of a protected pasture who is about to stray into it. Beware! Every king has a protected pasture, and the protected pasture of Allah Almighty is His limits, that is, the things He has forbidden." Note: This chain is weak, but the hadith of Sayyiduna al-Nu'man bin Bashir (may Allah be pleased with him) in Sahih al-Bukhari and Muslim is a supporting report (shahid) for it. Abu Ya'la also narrated it in a similar way.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب البيوع / 1420
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: هَذَا إِسْنَادٌ ضَعِيفٌ ، لَهُ شَاهِدٌ فِي الصَّحِيحِ مِنْ حَدِيثِ النُّعْمَانِ بْنِ بَشِيرٍ - رَضِيَ اللهُ عَنْهُ - . » «أخرجه مسند أبي يعلى برقم: 1653، وأخرجه المطالب العالية لابن حجر برقم: 1420 / 2، وأخرجه المعجم الأوسط للطبراني برقم: 1735»