Abu Malik Al-Ash'ari (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said: "Wudu' is half the Iman."[Muslim]. (JA)
App reference (JA): Book 9, Hadith 41 (JA)
Arabic/English book reference (JA): Book 9, Hadith 1031 (JA)