Purāṇas · c. 9th-10th c. CE
यस्य पुच्छाग्रेऽवाक्शिरस: कुण्डलीभूतदेहस्य ध्रुव उपकल्पितस्तस्य लाङ्गूले प्रजापतिरग्निरिन्द्रो धर्म इति ... ॥ ५ ॥
Under the ends of the Sisumara's tail are Prajapati, Agni, Indra and Dharma. — J.M. Sanyal (1930s; public domain)
Flagged because the referent differs from the Sūrya Siddhānta's Prajāpati already in this database. That one is the Rohiṇī-pursuer near Orion/Auriga (δ Aurigae per Burgess). The Prajāpati of Bhāgavata 5.23.1 and 5.23.5 is one of the five stars circumambulating Dhruva and sits on the tail of the Śiśumāra — necessarily circumpolar, hence a different star. Some modern writers make it a former pole star. Kept as a distinct sense rather than merged.
Bhāgavata Purāṇa 5.23.5 (and 5.23.1) · text · translation