Since you possess Lord Krsna's potency, you certainly know these things. However, it is the nature of a sadhu to inquire. Although he knows these things, the sadhu inquires for the sake of strictness

Expressions researched:
"Since you possess Lord Kṛṣṇa’s potency, you certainly know these things. However, it is the nature of a sādhu to inquire. Although he knows these things, the sādhu inquires for the sake of strictness"

Sri Caitanya-caritamrta

CC Madhya-lila

“Since you possess Lord Kṛṣṇa’s potency, you certainly know these things. However, it is the nature of a sādhu to inquire. Although he knows these things, the sādhu inquires for the sake of strictness."

CC Madhya 20.105, Translation

“Since you possess Lord Kṛṣṇa’s potency, you certainly know these things. However, it is the nature of a sādhu to inquire. Although he knows these things, the sādhu inquires for the sake of strictness."