Simplify the following text for a Grade 10 native English-speaking person.
Original: The Medinan suras of the Qur ` an are those suras which were revealed at Medina , after Muhammad 's hijra from Mecca , when the Muslims were establishing a state rather than being , as at Mecca , an oppressed minority .
Simplified: The Medinan suras are the suras that Muslims believe were shown to Muhammad after his journey ( the hijra ) from Mecca to Medina .