Musnad Ahmad 1015:0

Narrated to us by Abu Malik al-Ash'ari, he said: The Messenger of Allah (ﷺ) said: "Purity is half of faith, and 'Al-hamdu lillah' (All praise is due to Allah) fills the scale, and 'Subhan Allah' (Exalted is Allah) and 'Al-hamdu lillah' fill what is between the heavens and the earth. Prayer is a light, charity is a proof, patience is an illumination, and the Quran is a proof for you or against you. Every person goes out in the morning and sells his soul, either setting it free or destroying it."