There is none worthy of worship but Allah, the One, the Victorious, Lord of the heavens and the earth and all that is between them, the All-Mighty, the All-Forgiving.
لَا إِلَهَ إِلَّا اللهُ الْوَاحِدُ اْقَهَّارُ، رَبُّ السَّمَاوَاتِ وَالْأَرْضِ وَمَا بَيْنَهُمَا الْعَزِيزُ الْغَفَّارُ
Laa ‘ilaaha ‘illallaahul-Waahidul-Qahhaaru, Rabbus-samaawaati wal’ardhi wa maa baynahumal-‘Azeezul-Ghaffaar
This is to be said if you turn over in bed during the night. Al-Hakim graded it authentic and Ath-Thahabi agreed 1/540. Also see An-Nasa’i, ‘Amalul-Yawm wal-Laylah