It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Usury (riba) has seventy-two (72) chapters or degrees; the least of them in sin is like a man committing fornication with his mother, and the greatest usury is a man's unjust attacking with his tongue upon the honour and dignity of his (Muslim) brother and humiliating him."
Takhrij and grading: Imam Ibn Abi Shaybah recorded it in his al-Musannaf (22441), and Allamah al-Albani declared it sahih (authentic) on the basis of other supporting narrations. [Sahih al-Jami': 3537].
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الأدب / 2726
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :صحيح لغيره. » «أخرجه المعجم الأوسط للطبراني برقم: 7147، وأخرجه مجمع الزوائد ومنبع الفوائد برقم: 5976»