Where is the single narrator in this example?

Gharīb Hadith: A Single Narrator in a Generation

In the transmission of the Hadith about faith and modesty:

• Abu Ṣāliḥ alone transmitted it from Abu Hurayrah.
• ʿAbdullāh ibn Dīnār alone transmitted it from Abu Ṣāliḥ.

Each of these two generations has one narrator. This is why the example is classified as gharīb.