Arabic (Original)
قَالَ وَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَنْ خَافَ مِنْكُمْ أَنْ لَا يَسْتَيْقِظَ مِنْ آخِرِ اللَّيْلِ فَلْيُوتِرْ مِنْ أَوَّلِ اللَّيْلِ ثُمَّ لِيَرْقُدْ وَمَنْ طَمِعَ مِنْكُمْ أَنْ يَسْتَيْقِظَ مِنْ آخِرِ اللَّيْلِ فَلْيُوتِرْ مِنْ آخِرِ اللَّيْلِ فَإِنَّ قِرَاءَةَ آخِرِ اللَّيْلِ مَحْضُورَةٌ وَذَلِكَ أَفْضَلُ.
English Translation
He said: And the Messenger of Allah, peace and blessings be upon him, said: "Whoever among you fears that he will not wake up at the end of the night, let him pray Witr at the beginning of the night, then sleep. And whoever hopes to wake up at the end of the night, let him pray Witr at the end of the night, for recitation at the end of the night is witnessed, and that is more excellent."