73:6
اِنَّ نَاشِئَةَ الَّیْلِ هِیَ اَشَدُّ وَطْـًٔا وَاَقْوَمُ قٖیلًاؕ
Inna nashiata allayli hiya ashaddu watan waaqwamu qeelan
Translations
Indeed, the hours of the night are more effective for concurrence [of heart and tongue] and more suitable for words
Saheeh International
Lo! the vigil of the night is (a time) when impression is more keen and speech more certain
Marmaduke Pickthall