Answer:
Musa I of Mali, also known as Mansa Musa, was the tenth emperor of the Mali empire. On the other hand, Askia Mohammad I "The great" was a senonike king of the Songhai empire.
Mansa Musa
Mali's most famous ruler
Went on a Hajj (annual Islamic pilgrimage to Mecca)
Sent scholars to study in Morocco, who later established schools in Mali to study the Qur'an
Askia the great
One of Songhai's greatest rulers
Created a professional army
Established plenty of schools and made islam part of the empire
He owned salt mines
Common characteristics
They were muslim kings
They cared about their people's education
They established schools
They built mosques
They conquered Mali in different periods of time