Imām Alī (pbuh) stated, ‘By God, whose power we passed the rest of the dark night, he will smile through the brightness of the day… It will not remain so forever.
Nahj al-balāgha, Sermon 277
According to some translators and commentators of Nahj al-balāgha, this word announces the Emergence of His Majesty Mahdī (mgehr), and the dawn of justice, and refers to the general principle of “this darkness will end up by the dawn, and the dawn will be replaced by the morning.”
Monjī Mo’od az Manzar-e Nahj al-balāgha, Page 98