Tatiyasamudayadhammasutta

sn22.128:1.1 At one time Venerable Sāriputta and Venerable Mahākoṭṭhita were staying near Varanasi in the deer park at Isipatana. …

sn22.128:1.2 Mahākoṭṭhita said to Sāriputta:

sn22.128:1.3 “Reverend Sāriputta, they speak of this thing called ‘knowledge’.

sn22.128:1.4 What is knowledge?

sn22.128:1.5 And how is a knowing one defined?”