Surah 72. Al-Jinn, Ayah 16

Lit., "water abundant": a metaphor of happiness, echoing the allegorical reference, so frequently occurring in the Qur'an, to the "running waters" of paradise (Abu Muslim, quoted by Razi).

Rain: literally, water: stands for all kinds of blessings, material, moral, and spiritual. All blessings come by way of trial: the more we have, the more is expected of us. A man of gifts, talents, or insight is expected to show a higher standard of love and unselfishness than one less gifted, just as a rich man is expected to give more in charity than a poor man.