In plain words
Yaśōdā calls: "At the sacrifice of Mahābali of very great fame [for his giving], Śukra [his teacher] said, 'This is not fitting,' and tried to stop the gift of the land, and you [as Vāmana] poked his eye with the tip of the ring of sacred grass on your finger: you with the discus in your hand, accō, accō! You with the conch in your left hand, accō, accō!"