TIPITAKA Volume 18 : PALI ROMAN Sutta Pitaka Vol 10 : Sutta. Saṃ. Saḷa.

[773] Ekaṃ samayaṃ āyasmā ca sārīputto āyasmā ca mahākoṭṭhito bārāṇasiyaṃ viharanti isipatane migadāye .pe. Sāyeva pucchā . ko nu kho āvuso hetu ko paccayo yenetaṃ abyākataṃ bhagavatāti.