Wrong

Prophet Muhammad (pbuh) said: “The best things with which grey hair are changed are henna and katam (a plant from Yemen which produces
a reddish-black dye)”. [Sunan Abu Dawood Vol.3 Chapter 1567 Hadith No.4193]
During the days of the Prophet (pbuh), the Jews and the Christians used to refrain from dyeing greying hair because they considered such adornment as contrary to piety and devotion, and not befitting rabbis, priests and ascetics. The Prophet (pbuh) forbade Muslims from imitating them (the Jews and the Christians), in order that Muslims might develop their own distinctive and independent characteristics