مَنْ قَالَ (سُبْحَانَ اللَّهِ الْعَظِيمِ وَبِحَمْدِهِ) غُرِسَتْ لَهُ نَخْلَةٌ فِي الْجَنَّةِ
Whoever says: Subḥānallāhi ‘l-'Aẓīmi wa biḥamdih will have a date palm planted for him in Paradise.
Whoever says: Glorified is Allah the Most Great and praised is He. will have a date palm planted for him in Paradise.
At-Tirmidhi 5/511, and Al-Hakim who graded it authentic and Ath-Thahabi agreed 1/501. See also Al-Albani, Sahihul-Jami' As-Saghir 5/531 and Sahih At-Tirmidhi3/160.