"Yes, the visit is being prepared. It may take place at the end of March," the source said.
Kremlin spokesman Dmitry Peskov on Tuesday confirmed the preparation of Russian-Iranian contacts at the highest level.
"Top-level contacts are being prepared. We will inform you about the dates," Peskov told Sputnik.
The Iranian embassy in Russia on Tuesday confirmed the plans of Iranian President Hassan Rouhani to visit Russia for talks with Russian President Vladimir Putin in March.
"We confirm that President Rouhani is arriving in Russia in March for talks with Vladimir Putin," deputy head of the Iranian embassy in Russia Ahmad Heydarian said when asked by Sputnik to comment on reports on the preparation of Rouhani's visit in March.
The nationwide ceasefire in Syria backed by Russia and Turkey came into effect on December 30 and was later supported by a UN Security Council resolution.