CC Madhya 18.100

tabe tāṅre kahe prabhu cāpaḍa māriyā
“mūrkhera vākye ‘mūrkha’ hailā paṇḍita hañā
Word for word: 
tabe — thereafter; tāṅre — unto Balabhadra Bhaṭṭācārya; kahe — says; prabhu — Śrī Caitanya Mahāprabhu; cāpaḍa māriyā — slapping; mūrkhera vākye — by the words of some rascals and fools; mūrkha hailā — you became a fool; paṇḍita hañā — being a learned scholar.
Translation: 
When Balabhadra Bhaṭṭācārya asked to see Kṛṣṇa at Kālīya-daha, Śrī Caitanya Mahāprabhu mercifully slapped him, saying, “You are a learned scholar, but you have become a fool, being influenced by the statements of other fools.
Purport: 

Māyā is so strong that even a person like Balabhadra Bhaṭṭācārya, who was constantly staying with Śrī Caitanya Mahāprabhu, was influenced by the words of fools. He wanted to see Kṛṣṇa directly by going to Kālīya-daha, but Śrī Caitanya Mahāprabhu, being the original spiritual master, would not allow His servant to fall into such foolishness. He therefore chastised him, slapping him just to bring him to a real sense of Kṛṣṇa consciousness.