Faith increases and decreases.
حدثنا أبو عثمان البخاري سعيد بن سعد قال حدثنا الهيثم بن خارجة قال حدثنا إسمعيل يعني ابن عياش عن عبد الوهاب بن مجاهد عن مجاهد
الإيمان يزيد وينقص
No references are available.
[Its chain of transmission is extremely daif]. Abdul-Wahhab is "abandoned, and Thawri accused him of lying" (Taqrib), but the meaning of the report is sahih, transmitted with mass-transmission (tawatur) from trustworthy leading scholars of the Muslims, Allah willing.