The Sufficient (Vol 4) · Hadith 1762 (#Ḥadīth #5)
Chapter 168 | Walking Faster (Running Slowly) in Muhassar Valley
5ـ أَبُو عَلِيٍّ الأَشْعَرِيُّ عَنْ مُحَمَّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنْ إِسْحَاقَ بْنِ عَمَّارٍ عَنْ أَبِي الْحَسَنِ (عَلَيْهِ السَّلاَم) قَالَ سَأَلْتُهُ عَنْ حَدِّ جَمْعٍ قَالَ مَا بَيْنَ الْمَأْزِمَيْنِ إِلَى وَادِي مُحَسِّرٍ.
5. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya Ishaq ibn ‘Ammar who has said the following: “I once asked abu al-Hassan , about the boundaries of Jam‘. He (the Imam) said, ‘It is between al-Mazemin to Wadiy Muhassar.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).