Dua Before Sleeping for Protection

اَللَّهُمَّ لَكَ أَسْلَمْتُ وَبِكَ آمَنْتُ وَعَلَيْكَ تَوَكَّلْتُ وَإِلَيْكَ أَنَبْتُ وَبِكَ خَاصَمْتُ اَللَّهُمَّ إِنِّي أَعُوْذُ بِعِزَّتِكَ لَا إِلَهَ إِلَّا أَنْتَ أَنْ تُضِلَّنِيْ أَنْتَ الْحَيُّ الَّذِيْ لَا يَمُوْتُ وَالْجِنُّ وَالْإِنْسُ يَمُوتُونَ

Transliteration

Allaahumma laka aslamtu, wabika aamantu, wa ‘alayka tawakkaltu, wa ilayka anabtu, wabika khaasamtu, Allaahumma Innee a‘oodhu bi‘izzatika, laa ’ilaaha ’illaa anta an tu’dillanee, antal-‘haiyyul-ladhee laa yamootu, wal-jinnu wal-’insu ya-mootoon

Meaning

O Allah, to You I did submit, and in You I did believe, and on You I did rely, and to You I did return, and with Your [help] I did dispute [defend and fight]. I seek refuge in Your Might, there is no deity [worthy of worship] but You, [that You] let me not go astray. You are the Ever living who does not perish, while the jinn and mankind perish.

Source: Muslim: 2717