عن أبي هريرة -رضي الله عنه- مرفوعاً: «من صَام رمضان إيِمَانًا واحْتِسَابًا، غُفِر له ما تَقدَّم من ذَنْبِه». [صحيح] [متفق عليه]
Abu Hurayrah (MABPWH) reported that the Prophet (MAPBBUH) said: "He who observes fasting during the month of Ramadan faithfully and expecting its reward from Allah will have his past sins forgiven." [Sahih/Authentic] [Al-Bukhari and Muslim]