It is narrated from Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) that he said: "Usamah bin Zayd (may Allah be pleased with him) and I used to go to those idols of Quraysh that were (set up) around the Ka'bah. We would go to the places of filth and take liquid excrement (filth) in our hands, then take it to the idols of Quraysh and smear them with that impurity. When morning came, they (the polytheists) would say: 'Who has done this to our gods?' Then they would rush to those idols and wash them clean with milk and water."
Its chain is sahih (authentic).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب السيرة والمغازي / 4224
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: إِسْنَادُهُ صَحِيحٌ . » «انفرد به المصنف من هذا الطريق»