Sayyiduna Abu Amir Ash'ari (may Allah be pleased with him) says: One of our men was killed in the Battle of Autas. The Noble Prophet (peace and blessings be upon him) said to me: "Abu Amir! Why did you not take the blood money (diyah)?" I replied by reciting this verse: «يا أيها الذين آمنوا عليكم أنفسكم لا يضركم من ضل إذا اهتديتم» "O you who believe! Take care of your own selves. If you follow the right guidance, no harm can come to you from those who are astray." (Surah Al-Ma'idah: 105) The Messenger of Allah (peace and blessings be upon him) became angry and said: "Where have you gone? The meaning of this verse is that when you are on the right path, the disbelievers should not be able to mislead you." It is narrated by Tabarani with these words: "Sayyiduna Abu Amir (may Allah be pleased with him) narrates that there was some reason due to which I refrained from the Messenger of Allah (peace and blessings be upon him). When the Prophet (peace and blessings be upon him) asked me what had held me back, I recited this verse: «يا أيها الذين آمنوا عليكم أنفسكم لا يضركم من ضل إذا اهتديتم» 'O you who believe! Take care of your own selves. If you follow the right guidance, no harm can come to you from those who are astray.'"