Lord Brahmā, Bhṛgu Muni, Lord Śiva, Prajāpati Dakṣa, the great sons of Brahmā, and many others among the human beings, demigods, forefathers and ghostly spirits — all were astonished by the achievement of Mārkaṇḍeya Ṛṣi.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
ब्रह्मा भृगुर्भवो दक्षो ब्रह्मपुत्राश्च येऽपरे । नृदेवपितृभूतानि तेनासन्नतिविस्मिताः
brahmā bhṛgurbhavo dakṣo brahmaputrāśca ye'pare | nṛdevapitṛbhūtāni tenāsannativismitāḥ
SB 12.8.12