The narrator named Ya'qub bin Ashja' reports: 'Awn bin 'Abdullah wrote down for me the words of Tashahhud as narrated from Sayyiduna 'Abdullah bin 'Abbas (may Allah be pleased with them both), then he took my hand and explained: Sayyiduna 'Umar (may Allah be pleased with him) had once taken his hand and explained this to him, and once the Prophet Muhammad (peace and blessings be upon him) had taken his hand and taught him the words of Tashahhud (which are as follows): "All greetings, prayers, pure and blessed acts are for Allah; all verbal and physical acts of worship are exclusively for Allah." The chain of this narration is Hasan, and its narrator Ibn Lahi'ah is not reliable.