«رَوَوْا ذَلِكَ عَنْ مِثْلِهِمْ مِنَ الِابْتِدَاءِ إِلَى الِانْتِهَاءِ»
They transmit it from comparable groups from the beginning of the chain to its end.
A crowd of late transmitters is insufficient if the report began with a single source. Subsequent multiplication does not retroactively transform its earliest stage into tawatur.
Hypothetical example: If stage one has 1 transmitter, stage two 12, and stage three 100, the first stage fails the requirement. Conversely, a report with adequate multiplicity at every stage may meet it, provided the first condition's qualitative standard is also satisfied.