SB 3.8.20
tamasy apare viduratma-sargam
vicinvato ’bhut sumahams tri-nemih
yo deha-bhajam bhayam irayanah
pariksinoty ayur ajasya hetih
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O Vidura, while searching in that way about his existence, Brahma reached his ultimate time, which is the eternal wheel in the hand of Visnu and which generates fear in the mind of the living entity like the fear of death.