Russian Federation has said it has seen no evidence he was poisoned and has denied trying to harm him.
The Kremlin has said it has seen no evidence Navalny was poisoned and that he is free to return to Russian Federation at any time. The Kremlin has repeatedly denied a role in the opposition leader's poisoning.
The Kremlin has said Mr Navalny is free to return to Russia at any time like any other Russian citizen.
Russian prosecutors last month also announced they were bringing "large-scale fraud" charges against Navalny and some of his colleagues for allegedly embezzling donations from their activist organizations.
"This morning, while doing my routine exercises, which I have been doing for several months, I caught myself thinking that I probably nearly healthy and I can complete my recovery at home", Navalny expalined.
"Putin again is stomping his feet and demanding everything is done to ensure I don't return home ... Come greet me", he said.
"Navalny is confronting the authorities with a choice", said Alexei Makarkin, deputy director of the Center for Political Technologies in Moscow.
Navalny fell into a coma while aboard a domestic flight from Siberia to Moscow on August 20.
The Siberian hospital that first treated him said he had been diagnosed with a metabolic disease caused by low blood sugar.
A German military lab later found he had been poisoned with a Novichok nerve agent, a chemical weapon developed by the Soviet Union and used in a 2018 assassination attempt against the Russian former double agent Sergey Skripal in the United Kingdom. They refused to open a full-fledged criminal inquiry, citing the lack of evidence that Navalny was poisoned.
The service said he had failed to adhere to the conditions of his suspended sentence by refusing to return to Moscow in late December, while he was still recovering from his poisoning.