By You we enter the evening
The Prophet ﷺ closed every day with these words.
اللَّهُمَّ بِكَ أَمْسَيْنَا، وَبِكَ أَصْبَحْنَا، وَبِكَ نَحْيَا، وَبِكَ نَمُوتُ، وَإِلَيْكَ الْمَصِيرُ
Allāhumma bika amsaynā, wa bika aṣbaḥnā, wa bika naḥyā, wa bika namūtu, wa ilayka al-maṣīr
O Allah, by You we enter the evening and by You we enter the morning, by You we live and by You we die, and to You is the final return.
Refuge in the perfect words of Allah
Reported as protection from all harm until morning.
أَعُوذُ بِكَلِمَاتِ اللَّهِ التَّامَّاتِ مِنْ شَرِّ مَا خَلَقَ
Aʿūdhu bi-kalimātillāhi at-tāmmāti min sharri mā khalaq
I seek refuge in the perfect words of Allah from the evil of what He has created.
Said three times in the evening; reported as protection through the night.