It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): "What an evil servant of Allah so-and-so is!" This saying is narrated in the section on the merits of Sayyiduna Khalid bin al-Walid (may Allah be pleased with him).
And al-Harith said: A man narrated to us, from Anbasah bin Abd al-Rahman, from Khalid bin Yazid, from Sayyiduna Anas (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) said: "The expiation for backbiting is that you seek forgiveness from Allah Almighty for the one whom you have backbitten."
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الأدب / 2672
Hadith Gradingمحدثین:إسناده ضعيف جدًا
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف جدًا » «انفرد به المصنف من هذا الطريق»