Concept:Hadith 1 of an-Nawawi is the well-known hadith about intentions, and it is explained through the incident of migration.
Explanation:This hadith is reported by Umar ibn al-Khattab.
The Prophet stated that every action is judged by the intention behind it.
He then used the example of a person who migrates.
If the migration is meant for Allah and His Messenger, it is regarded as a sincere hijrah.
But if the migration is done for worldly gain or to marry a woman, the person gains only that worldly purpose.
Therefore, the hadith presents the issue of intention through the case of migration.
This makes migration the direct subject-matter of the hadith as given in the options.
Answer:D. migration