(Second Chain) Sayyiduna Usama (may Allah be pleased with him) says: I submitted, "O Messenger of Allah! He only recited the kalimah to save himself from blame or being killed." The Prophet (peace and blessings be upon him) said, "Did you cut open his heart to see whether he recited the kalimah for that reason or for some other reason? Who will be with you on the Day of Judgment to face LAA ILAAHA ILLALLAH?" The Prophet (peace and blessings be upon him) kept repeating this statement to such an extent that I wished I had only accepted Islam that day (so that this mistake would not have occurred from me and I would have been saved from the Prophet's reproach).