قَالَ رَسُولُ اللهِ ﷺ: «مَنْ قَالَ: سُبْحَانَ اللهِ وَ بِحَمْدِهِ فِي يَومٍ مِئَةَ مَرَّةٍ، حُطَّتْ خَطَايَاهُ، وَ لَو كَانَتْ مِثْلَ زَبَدِ البَحْرِ»

How perfect Allāh is and I praise Him. (One hundred times daily)

Reference: How perfect Allāh is and I praise Him. (One hundred times daily) Al-Bukhārī (#6405, 7/168) and Muslim (#2691, 4/2071).