صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب النوافل - ذكر الخبر الدال على أن الأمر بالركعات التي وصفناها بعد الجمعة أمر ندب لا حتم
Section on voluntary prayers – mentioning a report indicating that the instruction to pray these rak’ahs after Jumu’ah is a recommendation, not an obligation
1 hadith
Hadith 2479
Sayyiduna Abu Huraira (may Allah be pleased with him) narrates this statement of the Prophet Muhammad (peace and blessings be upon him): "When you begin to perform prayer after Jumu'ah, then perform four rak'ahs."