Al-Muzzammil - 6

﴿إِنَّ نَاشِئَةَ اللَّيْلِ هِيَ أَشَدُّ وَطْئًا وَأَقْوَمُ قِيلًا﴾

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(6) Indeed, the hours of the night are more effective for concurrence [of heart and tongue][1780] and more suitable for words.[1781]