Furthermore, there’s a time when a mendicant’s heart is overcome and mired in ill will … dullness and drowsiness … restlessness and remorse … doubt …

Furthermore, there’s a time when a mendicant doesn’t understand what kind of meditation they need to focus on in order to end the defilements without delay. On that occasion they should go to an esteemed mendicant and say, “I don’t understand what kind of meditation to focus on in order to end the defilements without delay. Venerable, please teach me how to end the defilements.” Then that esteemed mendicant teaches them how to end the defilements. This is the sixth occasion for going to see an esteemed mendicant.’

Reverends, I have heard and learned this in the presence of the Buddha: ‘These are the six occasions for going to see an esteemed mendicant.’”

Numbered Discourses 6.29 3. Unsurpassable With Udāyī

Then the Buddha said to Udāyī, “Udāyī, how many topics for recollection are there?”

When he said this, Udāyī kept silent.

And a second time … and a third time, the Buddha said to him, “Udāyī, how many topics for recollection are there?”

And a second time and a third time Udāyī kept silent.

Then Venerable Ānanda said to Venerable Udāyī, “Reverend Udāyī, the Teacher is addressing you.”