But whoever speaks the truth that Allah has authorized, both in conclusions and in proofs, is among the people of knowledge and faith:
“Allah speaks the truth, and He guides to the right way.”
Al-Ahzāb: 4.
[The permissibility of addressing those who use technical terminology in their own terms]
Addressing those who use technical terminology in their own terms and language is not blameworthy when there is a need for it and the meanings conveyed are sound. This is like addressing non-Arabs—Romans, Persians, and Turks—in their own languages and according to their customary usage. This is permissible and commendable when needed; the leading scholars disapproved of it only when there was no need for it.
For this reason, “the Prophet, may Allah bless him and grant him peace, said to Umm Khālid bint Khālid ibn Saʿīd ibn al-ʿĀs—who was a young girl born in Abyssinia, because her father was among those who had emigrated there—‘O Umm Khālid, this is sanā.’” In the language of Abyssinia, sanā means beautiful; he used it because she spoke that language.
Likewise, the Quran and hadith are translated for those who need a translation to understand them. A Muslim may also read whatever he needs from the books and writings of other peoples in their own languages and translate them into Arabic,