Introduction:
The Bhagavata cult is a religious tradition that worships Lord Krishna as the supreme deity. It is based on the Bhagavata Purana, an ancient Hindu scripture that narrates the life and teachings of Lord Krishna. The later-day Krishna facet of the Bhagavata cult is believed to have been derived from the Abhiras, a pastoral community in ancient India.

Explanation:
The Abhiras were a pastoral community that primarily inhabited the western regions of ancient India, particularly in present-day Gujarat, Rajasthan, and Maharashtra. They were known for their cattle-rearing and agricultural activities. The Abhiras were mentioned in various ancient texts, including the Mahabharata and the Puranas.

Connection with the Bhagavata cult:
The Bhagavata Purana, which forms the basis of the Bhagavata cult, was composed during the Gupta period (4th-6th century CE). It is believed that the later-day Krishna facet of the Bhagavata cult was influenced by the Abhiras due to the following reasons:

1. Geographical proximity: The Abhiras inhabited the western regions of India, which were in close proximity to the areas where the Bhagavata cult flourished. This geographical proximity might have facilitated the exchange of ideas and cultural influences between the Abhiras and the followers of the Bhagavata cult.

2. Cattle-rearing tradition: The Abhiras were primarily engaged in cattle-rearing, which was also an important aspect of Lord Krishna's life. Krishna, as a cowherd, was often depicted with cows and is known by various names such as Govinda (Protector of Cows) and Gopala (Cowherd). The Abhiras' association with cattle-rearing might have contributed to the later-day Krishna facet of the Bhagavata cult.

3. Folk traditions and beliefs: The Abhiras had their own folk traditions and beliefs, which might have overlapped with the stories and legends associated with Lord Krishna. Over time, these folk traditions and beliefs could have merged with the Bhagavata tradition, giving rise to the later-day Krishna facet of the Bhagavata cult.

Conclusion:
The later-day Krishna facet of the Bhagavata cult is believed to have been derived from the Abhiras, a pastoral community in ancient India. The geographical proximity, the Abhiras' cattle-rearing tradition, and their folk traditions and beliefs might have played a significant role in influencing the development of the later-day Krishna facet of the Bhagavata cult.