In the Name of Allah, the Most Gracious, the Most Merciful. Verily, We have sent it (this Qur'an) down in the night of Al-Qadr (Decree).
Shakir
Surely We revealed it on the grand night.
Arabic
وما أدراك ما ليلة القدر
Arabic, with marks
وَمَا أَدْرَاكَ مَا لَيْلَةُ الْقَدْرِ
Hilali & Muhsin Khan
And what will make you know what the night of Al-Qadr (Decree) is?
Shakir
And what will make you comprehend what the grand night
Arabic
ليلة القدر خير من ألف شهر
Arabic, with marks
لَيْلَةُ الْقَدْرِ خَيْرٌ مِّنْ أَلْفِ شَهْرٍ
Hilali & Muhsin Khan
The night of Al-Qadr (Decree) is better than a thousand months (i.e. worshipping Allah in that night is better than worshipping Him a thousand months, i.e. 83 years and 4 months).