The Sufficient (Vol 3) · Hadith 1009 (#Ḥadīth #5)
Chapter 3 | Salah (Prayer) Is Made Obligatory (Chapters 3-15, practical rules about prayer are best expressed in the form of fatwa.)
5ـ حَمَّادٌ عَنْ حَرِيزٍ عَنْ زُرَارَةَ قَالَ سَأَلْتُ أَبَا جَعْفَرٍ (عَلَيْهِ الْسَّلام) عَنِ الْفَرْضِ فِي الصَّلاَةِ فَقَالَ الْوَقْتُ وَالطَّهُورُ وَالْقِبْلَةُ وَالتَّوَجُّهُ وَالرُّكُوعُ وَالسُّجُودُ وَالدُّعَاءُ قُلْتُ مَا سِوَى ذَلِكَ قَالَ سُنَّةٌ فِي فَرِيضَةٍ.
5. Hammad has narrated from Hariz from Zurarah from who has said the following: “I once asked abu Ja‘far , about what is obligatory in Salah (prayer). He (the Imam) said, ‘Time, al-Tahur (cleansing), facing al-Qiblah (al-Ka‘bah), paying attention, al-Ruku‘, al-Sujud and praying. The rest are optional in an obligatory duty.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).