in Arabic, his obligation is fulfilled. The same holds for the tashahhud and every other prescribed remembrance. This is a simple matter—easier than many of the duties Allah has imposed—so how could it be impossible for Allah, Blessed and Exalted, to command His servants to do it?

As for the general body of what the Messenger—may Allah bless him and grant him peace—has commanded, namely prayer, almsgiving, fasting, pilgrimage, truthfulness in speech, fulfilment of trusts, maintaining family ties, and what Allah has forbidden—idolatry, indecency, injustice, and the like—every person can come to know these through the explanation of someone who already knows them, whether that explanation is in Arabic or in another language. Understanding these matters is not contingent upon the language of the Arabs.