Abu Hurayra said, "The Prophet, may Allah bless him and grant him peace, would say in the morning, 'We have reached the morning and and all praise belongs to Allah who has no partner. There is no god but Allah and to Him is the gathering.' In the evening he would say, 'We have reached the evening and the kingdom belongs to Allah and all praise belongs to Allah who has no partner. There is no god but Allah and to Him is the return."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُوسَى، قَالَ: حَدَّثَنَا أَبُو عَوَانَةَ، قَالَ: حَدَّثَنَا عُمَرُ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ قَالَ: كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا أَصْبَحَ قَالَ: أَصْبَحْنَا وَأَصْبَحَ الْحَمْدُ كُلُّهُ لِلَّهِ، لاَ شَرِيكَ لَهُ، لاَ إِلَهَ إِلاَّ اللَّهُ، وَإِلَيْهِ النُّشُورُ، وَإِذَا أَمْسَى قَالَ: أَمْسَيْنَا وَأَمْسَى الْمُلْكُ لِلَّهِ، وَالْحَمْدُ كُلُّهُ لِلَّهِ، لاَ شَرِيكَ لَهُ، لاَ إِلَهَ إِلاَّ اللَّهُ، وَإِلَيْهِ الْمَصِيرُ.
sunnah.com