صحیح ابن حبان
Ibn Hibban
كتاب الصوم
Book of Fasting
فصل في صوم يوم الجمعة - ذكر البيان بأن صوم يوم الجمعة مباح إذا صام المرء معه الخميس أو السبت
Section on Fasting Friday - Clarifying that fasting Friday is allowed if combined with Thursday or Saturday
1 hadith
Hadith 3614
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "Whoever fasts on Friday, he should also fast a day before it or a day after it."