رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1219
The Book of Virtues
The Excellence of Observing Saum (Fasts) during Ramadan
وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: مَنْ صَامَ رَمَضَانَ إِيمَانًا وَاحْتِسَابًا، غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ " ((مُتَّفَقٌ عَلَيْهِ))
Abu Hurairah (May Allah be pleased with him) reported: The Prophet (ﷺ) said, "He who observes fasting during the month of Ramadan with Faith while seeking its reward from Allah, will have his past sins forgiven." [Al-Bukhari and Muslim].
Riyad as-Salihin, 1219