The first chain has Mughīrah ← Ibrāhīm and records a reply to ʿAlqamah. The second has al-Aʿmash ← Ibrāhīm and reports al-Ḥārith’s own wording. They converge on Ibrāhīm while the intervening route and form of the report differ.
Comparison establishes that Qurʾān and waḥy occur in both accounts, whereas the ordering of years is uncertain only in the second. Assessment of intended meaning and accuracy of wording must remain distinct; variation by itself proves neither fabrication nor correctness.