The Sufficient (Vol 3) · Hadith 1012 (#Ḥadīth #8)
Chapter 3 | Salah (Prayer) Is Made Obligatory (Chapters 3-15, practical rules about prayer are best expressed in the form of fatwa.)
8ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ الْحَلَبِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ الصَّلاَةُ ثَلاَثَةُ أَثْلاَثٍ ثُلُثٌ طَهُورٌ وَثُلُثٌ رُكُوعٌ وَثُلُثٌ سُجُودٌ.
8. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “Abu ‘Abd Allah , has said, ‘Acts of Salah (prayer) fall in three categories; They are Tahur (cleansing), Ruku‘ (bowing down on one’s knees), and Sujud (prostration).”’
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).