The Sufficient (Vol 3) · Hadith 332 (#Ḥadīth #10)
Chapter 46 | Rare Ahadith about Wudu’
10ـ مُحَمَّدُ بْنُ يَحْيَى وَأَحْمَدُ بْنُ إِدْرِيسَ عَنْ أَحْمَدَ بْنِ إِسْحَاقَ عَنْ سَعْدَانَ عَنْ بَعْضِ أَصْحَابِهِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ الطُّهْرُ عَلَى الطُّهْرِ عَشْرُ حَسَنَاتٍ.
10. Muhammad ibn Yahya and Ahmad ibn Idris have narrated from Ahmad ibn Ishaq from Sa‘dan from certain persons of his people who have said the following: “Abu ‘Abd Allah , has said, ‘For having al-Tuhr (cleansing) over al-Tuhr one receives a reward for ten good deeds.”’
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).