Twofold rewards
 

Asma b. Umays, who had migrated to Ethiopia and then to Madinah, argued with another Muslim who had migrated to Madinah only. Both of them claimed to be superior in terms of the reward of migration. In the end, they asked the Prophet. He said,

"Those who migrated to Ethopia migrated twice. Those who migrated to Madinah only migrated once."