It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Among those before you, the Children of Israel, when someone committed a sin, the one who forbade him would forbid him merely as a formality, just to discharge the duty. Then the next day he would sit with that sinner and share his food and drink as though he had not seen him sinning the day before. So when Allah, the Mighty and Majestic, saw this conduct of theirs, He made their hearts like one another (and set them against each other), and He cursed them on the tongue of His prophets, Sayyiduna Dawud and Sayyiduna Isa bin Maryam (peace be upon them both): That was because they disobeyed and used to transgress. By the One in whose hand is my soul! You must enjoin what is good and forbid what is evil, and you must firmly compel the wrongdoer to come to the truth; otherwise Allah Almighty will make your hearts like one another as well, and will curse you just as He cursed them."
Hadith Referenceمسند أبي يعلى الموصلي / مسند عبد الله بن مسعود / 5094
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده ضعيف . » «قال سعيد بن محمد السناري: ضعيف: مضى الكلام عليه [برقم 5035]» «أخرجه سنن الترمذي برقم: 3048، وأخرجه سنن أبي داود برقم: 4336، وأخرجه سنن ابن ماجه برقم: 4006، وأخرجه المعجم الكبير للطبراني برقم: 10264، 10268، وأخرجه رياض الصالحين برقم: 220، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 7076، مسند ابویعلیٰ ترقیم الاثری: 5072»