CC Madhya 12.150
ataeva saṅkṣepa kari’ kariluṅ varṇana
This incident has been described in detail by Vṛndāvana dāsa Ṭhākura. Therefore I have described it only in brief.
This is a matter of etiquette. If a previous ācārya has already written about something, there is no need to repeat it for personal sense gratification or to outdo the previous ācārya. Unless there is some definite improvement, one should not repeat.