"Then indeed, your Lord, for those who migrated after they had been persecuted," Al-Hasan's interpretation: They were a people who were in Makkah, and they were subjected to persecution; so they apostatized from Islam and doubted the Prophet of Allah. Then, they accepted Islam again and migrated to the Messenger of Allah in Madinah, and subsequently struggled alongside him and remained patient.
"But those who open their breast to disbelief," Muhammad said: meaning, he opens his breast to it by accepting it.
Surat An-Nahl from verse (111) to verse (115).