Paraṁmaraṇasutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 528

[528] On one occasion the Venerable Mahākassapa and the Venerable Sāriputta were dwelling at Bārāṇasī, in the Deer Park at Isipatana. Then the Venerable Sāriputta, having emerged from seclusion in the evening, approached the Venerable Mahākassapa; having approached, he exchanged greetings with the Venerable Mahākassapa, and when they had concluded their courteous and amiable talk, he sat down to one side.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 16 · Section 263 — Saṁmassutta