Is it permissible to place a mark with colors or some dyes on the grave?

Question:
May Allah reward you, Honorable Shaykh. The questioner asks: Is it permissible to place a mark with colors or some dyes on the grave?

Answer:
No, it is not permissible to place dyes on the grave as a mark to identify it. It is not permissible. However, one may place a stone on it, as the Prophet (peace and blessings be upon him) did. A stone that is not known; the stone is not recognized except by its owner. Placing dyes and colors on it attracts people, and they say, "This is the grave of the deceased." The common people do not know; they assume that it benefits and harms. Therefore, it is not permissible to place dyes and colors on graves. This is like plastering.