Anas ibn Malik reported: The Messenger of Allah, peace and blessings be upon him, passed by a tree with dry leaves, so he struck it with his staff making the leaves fall. The Prophet said, “Verily, the praise of Allah, the glorification of Allah, the declaration there is no God but Allah, and the exaltation of Allah remove the sins of the servant just as the leaves of this tree fall.”
Source: Sunan At-Tirmidhi 3533
Grade: Hasan (fair) according to Al-Albani
عَنْ أَنَسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَرَّ بِشَجَرَةٍ يَابِسَةِ الْوَرَقِ فَضَرَبَهَا بِعَصَاهُ فَتَنَاثَرَ الْوَرَقُ فَقَالَ إِنَّ الْحَمْدُ لِلَّهِ وَسُبْحَانَ اللَّهِ وَلَا إِلَهَ إِلَّا اللَّهُ وَاللَّهُ أَكْبَرُ لَتُسَاقِطُ مِنْ ذُنُوبِ الْعَبْدِ كَمَا تَسَاقَطَ وَرَقُ هَذِهِ الشَّجَرَةِ
3533 سنن الترمذي كتاب الدعوات باب منه
المحدث الألباني خلاصة حكم المحدث حسن
Source: Daily Hadith