Abu Qilabah relates: I went to Sayyiduna Anas bin Malik (may Allah be pleased with him) but he was not there, so I sat waiting until he came. He came in a state of great anger. I asked him the reason for it, and he said: "We were with this man, that is, al-Hajjaj. Food was brought and they all ate, then they got up and prayed without performing a fresh ablution (after eating something cooked on fire). I asked him: Did you people not use to do this before? He said: No, we did not use to do it."
In another chain it is narrated from Imam Abu Qilabah: I saw Sayyiduna Anas bin Malik (may Allah be pleased with him) in a very heavy and troubled mood, so I said: What is the matter? I see you distressed. He said: "Why should I not be grieved, when I have just now come away from those people who ate bread and meat and then prayed without performing ablution?"
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الطهارة / 125
Hadith Gradingمحدثین:إسناده صحيح، موقوف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :موقوف، إسناده صحيح. » «أخرجه ابن ماجه فى «سننه» برقم: 487، والبزار فى «مسنده» برقم: 6687، وأورده ابن حجر فى "المطالب العالية"، 125، 125/2، وأخرجه عبد الرزاق فى «مصنفه» برقم: 670، وأخرجه ابن أبى شيبة فى «مصنفه» برقم: 560، وأخرجه الطبراني فى «الأوسط» برقم: 6720»