سُبْحَانَ ٱللَّٰهِ
Holy Qur'an
Al-Qur'an
Kids Qur'an
Lit., "working for" or "active in behalf of [inner] purity", which is the meaning of zakah in this context (Zamakhshari; the same interpretation has been advanced by Abu Muslim).
Zakâh means purification and growth. Paying alms-tax and charity are forms of purifying one’s wealth.