A hadith like this has been narrated by Abu Mas'ud from the Messenger of Allah (ﷺ) through another chain of transmitters.
The Book of Prayer - Travellers
Author: Sahih Muslim | Hadith Reference: Sahih Muslim 808 b
Commentary on the Supporting Narration
This supporting narration through Abu Mas'ud al-Ansari serves to strengthen and corroborate the primary hadith, demonstrating the meticulous preservation of Prophetic traditions through multiple reliable chains of transmission (isnad).
The mention of "another chain of transmitters" indicates the rigorous methodology of hadith scholars in verifying each narration, ensuring that the Sunnah reaches us through various independent paths, thus eliminating doubt about its authenticity.
Scholarly Significance
Such supporting narrations (mutaba'at) hold great importance in Islamic jurisprudence, as they elevate the ruling from the level of solitary narration (ahad) to that of widely-transmitted (mustafid), providing greater certainty in legal matters.
This particular style of narration demonstrates the Companions' collective effort in preserving every aspect of the Prophet's teachings, ensuring no detail of the prayer rulings for travelers was lost to future generations.