Bhimasena begot a son named Ghatotkaca through his wife Hidimba and a son named Sarvagata through his wife Kali
Expressions researched:
"Bhimasena begot a son named Ghatotkaca through his wife Hidimba and a son named Sarvagata through his wife Kali"
Srimad-Bhagavatam
SB Canto 9
O King, the son of Sahadeva was Śrutakarmā. Furthermore, Yudhiṣṭhira and his brothers begot other sons in other wives. Yudhiṣṭhira begot a son named Devaka through the womb of Pauravī, and Bhīmasena begot a son named Ghaṭotkaca through his wife Hiḍimbā and a son named Sarvagata through his wife Kālī. Similarly, Sahadeva had a son named Suhotra through his wife named Vijayā, who was the daughter of the king of the mountains.
SB 9.22.30-31, Translation: O King, the son of Sahadeva was Śrutakarmā. Furthermore, Yudhiṣṭhira and his brothers begot other sons in other wives. Yudhiṣṭhira begot a son named Devaka through the womb of Pauravī, and Bhīmasena begot a son named Ghaṭotkaca through his wife Hiḍimbā and a son named Sarvagata through his wife Kālī. Similarly, Sahadeva had a son named Suhotra through his wife named Vijayā, who was the daughter of the king of the mountains.