Because there is great comfort in it to our Prophet salla Allahu alaihi wa sallam as they are very similar in their upbringing and how their people treated them.

As a Muslims we believe that anything that mentioned in Qur’an its by Great Wisdom of Allah Subhanahu wa Tala. But there is always question in my mind: why the story of Musa a.s. and Pharaoh mentioned almost in every surah and its most frequently mentioned story in Qur’an?