What is the meaning of: "The hadith has many supporting evidences and chains of transmission"?

The expression "the hadith has many supporting evidences and chains of transmission" is used by hadith scholars to demonstrate the existence of follow-ups and supporting evidences for a hadith.

Chain of transmission (Tariq): This is when the hadith is narrated from the same Companion, but with a different chain of transmission than the first chain. An example is Muslim's narration of Al-Bukhari's hadith from Ibn Umar with a different chain.

Supporting evidence (Shahid): This is when the hadith is narrated from a different Companion than the one from whom the first hadith was narrated. An example is Al-Nasa'i's narration of the Asr hadith from Nawfal ibn Mu'awiyah as supporting evidence for Ibn Umar's hadith.

Many benefits are derived from these chains of transmission and supporting evidences, including: 1. Identifying errors that may occur from some narrators. 2. Increasing confidence in the authenticity and reliability of the hadith. 3. Strengthening a weak hadith to raise it to an acceptable level if its chains of transmission and supporting evidences are numerous.