The Sufficient (Vol 2) · Hadith 120 (#Ḥadīth #3)
Chapter 30 | Excellence of Certainty
3ـ ابْنُ مَحْبُوبٍ عَنْ هِشَامِ بْنِ سَالِمٍ قَالَ سَمِعْتُ أَبَا عَبْدِ الله (عَلَيهِ السَّلام) يَقُولُ إِنَّ الْعَمَلَ الدَّائِمَ الْقَلِيلَ عَلَى الْيَقِينِ أَفْضَلُ عِنْدَ الله مِنَ الْعَمَلِ الْكَثِيرِ عَلَى غَيْرِ يَقِينٍ.
3. Ibn Mahbub has narrated from Hisham ibn Salim who has said the following: “I heard Abu ‘Abdillah saying, ‘The little but continuous deed with certainty is far better in the sight of Allah than a great deal of deeds without certainty.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).