Compiled by Imam Yahya ibn Sharaf al-Nawawi
عن أبي هريرة رضي الله عنه، أن رسول الله صلى الله عليه وسلم قال: "من قام رمضان إيمانًا واحتسابًا غفر له ما تقدم من ذنبه". ((متفق عليه)) .
The Messenger of Allah (ﷺ) said, "He who observes optional prayer (Tarawih prayers) throughout Ramadan, out of sincerity of Faith and in the hope of earning reward will have his past sins pardoned."[Al- Bukhari and Muslim].