اللَّهُمَّ مَا أَصْبَحَ بِي مِنْ نِعْمَةٍ أَوْ بِأَحَدٍ مِنْ خَلْقِكَ، فَمِنْكَ وَحْدَكَ، لَا شَرِيكَ لَكَ، فَلَكَ الْحَمْدُ وَلَكَ الشُّكْرُ
What this dua means
It starts the day by tracing every blessing back to Allah alone.
When to read it
Say it in the morning; in the evening, replace asbaha with amsa.
Its virtue
Whoever says it in the morning has fulfilled the thanks due for his day.
getsalahtime.com