‘Umar bin al-Khattab [May Allah be pleased with him] said,

تعلموا العربية فانها من دينكم و تعلموا الفرائد فانها من دينكم

“Learn the Arabic language for surely it is from your religion, and learn inheritance for surely it is from your religion.”

Source: Sharh Iqtidaa as-Siraat al-Mustaqeem pg.345 [Official print from the Mu’assasah ash-Shaykh Muhammad bin Saalih al-‘Uthaymeen al-Khayriyyah]