Rely solely on God's words as our source of guidance . Be merciful towards others even if they are non-believers .

This hadith explains that the only source of divine knowledge is the Quran and any understanding of it is a gift from Allah. The narrator Abu Juhaifa asked Ali if there was any other source for divine knowledge besides what was in the Quran. Ali replied that there was nothing except what was in the Quran and whatever understanding Allah may give to someone. He then explained what was written on a piece of paper which included regulations about blood money, ransom for captives and judgment that no Muslim should be killed in Qisas for killing a disbeliever. This hadith teaches us to rely solely on God's words as our source of guidance and not to seek out other sources as they may lead us astray. It also teaches us to be merciful towards others even if they are non-believers as we should not take revenge or kill them in retaliation for their actions against us.