And he entered the city at a time when its people were not watching: and he found there two men fighting,- one of his own religion, and the other, of his foes. Now the man of his own religion appealed to him against his foe, and Moses struck him with his fist and made an end of him. He said: "This is a work of Evil (Satan): for he is an enemy that manifestly misleads!" (15)
Tafsir
This incident happened in the capital of Egypt before Moses received prophethood. One day, he saw an Egyptian and an Israelite fighting with each other. The Israelite called upon Moses (who was an Israelite himself) to help him. Moses wanted to separate them, but the Egyptian turned on Moses who in self-defence, gave him a blow. Accidentally, the blow led to the death of the Egyptian. The Egyptians at that time were committing atrocities on the Israelites on a large scale. In this context, had Moses viewed the matter from the communal point of view, he would have treated it as a heroic feat and boasted about it. But, on the contrary, he was very sorry about the Egyptian’s death. He immediately turned towards God and prayed for His forgiveness. ‘I will never be a helper of the guilty’ means, ‘I will not support anybody without investigating the matter.’ A person’s apparently belonging to an oppressed community and his soliciting support by accusing another person of oppression are not enough to prove that the latter is really an oppressor and that the former (the complainant) is really the oppressed person. Therefore, the right approach on such occasions is for the matter to be properly investigated and support should be extended to a complainant only when, on impartial investigation, his being oppressed has been established.
Alternatively, you may use the smart search feature provided below