Abu Malik Al-Ash'ari (may Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said: "Purity is half of iman (faith). 'Al-hamdu lillah (all praise and gratitude belong to Allah)' fills the scales, and 'subhan-Allah (how far is Allah from every imperfection) and 'Al-hamdulillah (all praise and gratitude belong to Allah)' fill that which is between heaven and earth."[Muslim]. (ES)
App reference (ES): Book 16, Hadith 6 (ES)
Arabic/English book reference (ES): Book 16, Hadith 1413 (ES)