The Sufficient (Vol 3) · Hadith 1691 (#Ḥadīth #2)
Chapter 77 | Required Length of Distance of a Journey for Shortened Salah (Prayer)
2ـ وَعَنْهُ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ أَبِي أَيُّوبَ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) أَدْنَى مَا يَقْصُرُ فِيهِ الْمُسَافِرُ فَقَالَ بَرِيدٌ.
2. It is a narration from him (narrator of previous Hadith) by his father from Ibn Abi ‘Umayr from abu Ayyub who has said the following: “I once asked abu ‘Abd Allah , about the minimum distance after the traveling of which a traveler reduces his Salah (prayer). He (the Imam) said, ‘It is one barid.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).