"The Messenger of Allah ﷺ said: 'There are statements of remembrance following the prayer of which the one who says them will never be deprive of the reward: Glorifying Allah (SWT) thirty-three times following each prayer, and praising Him thirty-three times, and magnifying Him thirty-four times.'" (Using translation from Nasāʾī 1349)
مُعَقِّبَاتٌ لَا يَخِيبُ قَائِلُهُنَّ يُسَبِّحُ فِي دُبُرِ كُلِّ صَلَاةٍ ثَلَاثًا وَثَلَاثِينَ وَيَحْمَدُ ثَلَاثًا وَثَلَاثِينَ وَيُكَبِّرُ أَرْبَعًا وَثَلَاثِينَ