Quote From 'the Life Of The Buddha' By Venerable Siridhamma Thero.

"Buddha spoke to Venerable Ananda. “It may be, Ananda, that some of you will say, ‘without the Buddha, the Sublime Teacher, there is no teacher for us’. No, Ananda, you should not think in this way. Whatever doctrine and discipline taught and made known by Me will be your teacher when I am gone.”

Then the Buddha addressed all the monks once more, and these were the very last words he spoke:

“Behold, O monks, this is my last advice to you. All component things in the world are impermanent. They are not lasting. Work hard to gain your own salvation.”

Then the Buddha lapsed into the jhana stages, or meditative absorptions. Going from level to level, one after the other, ever deeper and deeper. Then he came out of the meditative absorption for the last time and passed into nirvana, leaving nothing whatever behind that can cause rebirth again in this or any other world".