صحیح ابن حبان
Ibn Hibban
كتاب الطهارة
Book of Purification
باب فضل الوضوء - ذكر البيان بأن الله جل وعلا إنما يغفر ذنوب المتوضئ التي ذكرناها إذا كان مجتنبا للكبائر دون من لم يجتنبها
Chapter on the Virtue of Ablution - Clarification that Allah forgives the sins of one who avoids major sins
1 hadith
Hadith 1044
Ishaq bin Saeed narrates from his father, who reports from his grandfather: Once I was with Sayyiduna Uthman (may Allah be pleased with him). He called for water to perform ablution, then said: I heard the Prophet Muhammad (peace and blessings be upon him) say: "Whenever the time for an obligatory prayer comes upon any Muslim, and he performs ablution well, performs bowing well, and offers the prayer with humility, then this prayer becomes an expiation for his previous sins, as long as he does not commit a major sin. And this (virtue) is always available."