It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "I was a witness over them as long as I remained among them," or he (peace and blessings be upon him) said these words: "as long as I was present among them." The narrator Mis'ar (may Allah have mercy on him) was in doubt about which of these words were said.
Hadith Referenceمسند أبي يعلى الموصلي / مسند عبد الله بن مسعود / 5020
Hadith Takhrij«قال سعيد بن محمد السناري: صحيح: مضى قبله، وهو جزء من السابق» «أخرجه المعجم الكبير للطبراني برقم: 9781، وأخرجه مجمع الزوائد ومنبع الفوائد برقم: 10989، 10990، مسند ابویعلیٰ ترقیم الاثری: 4998»