When Moses was ordered to invite Pharaoh and his followers towards God...

When Moses was ordered to invite Pharaoh and his followers towards God, he (Moses) said: “Also they have a charge against me, and I fear they will kill me” (al-Shu’arā’:14) When Pharaoh reminded him of the murder he had committed, Moses said: “He said, ‘I Did that when I was astray’” (al-Shu’arā’:20) How can this story agree with the immunity of the prophets (a) from error even before their mission?

The answer is that first of all the murder of that Qobti person was not on purpose; Moses struck him once and he was killed. Secondly, the sentence “And they have a charge against me” is in fact from the point of view from Pharaoh and his followers, meaning that Moses thought that they would call him guilty;