Sufyan (may Allah have mercy on him) said: I asked Ubaydullah bin Abi Yazid (may Allah have mercy on him): Have you seen Sayyiduna Husayn bin Ali (may Allah be pleased with them both)? He replied: "The hair of his head and beard was black, except for a few hairs here in the front of his beard which were white. I do not know whether he had dyed his hair and left that spot (undyed) in imitation of the Messenger of Allah (peace and blessings be upon him), or whether only those hairs of his had turned white." He also said: "I saw Sayyiduna Hasan (may Allah be pleased with him) when the iqamah for the prayer had been called; he prostrated between the imam and some of the people. It was said to him: Sit down. He replied: 'The prayer has been established.'"
Hadith Referenceمسند أبي يعلى الموصلي / مسند الحسين بن علي بن أبي طالب / 6773
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده صحيح . » «قال سعيد بن محمد السناري: صحيح» «أخرجه ابن عساكر في "تاريخه" [14/ 127، مسند ابویعلیٰ ترقیم الاثری: 6740»