Digha Nikaya 1:445
SUJATO“na kho metaṁ patirūpaṁ, yvāhaṁ anāmantetvā upaṭṭhāke anapaloketvā bhikkhusaṅghaṁ parinibbāyeyyaṁ.
“It would not be appropriate for me to be fully extinguished before informing my supporters and taking leave of the mendicant Saṅgha.