Answered by Shaykh Faraz Rabbani
When the month of the birthday of the Prophet (peace and blessings be upon him) comes, our local mosque trust decorates the mosque with decorations, colourful ones, like the ones you get on birthdays, such as tinsel, etc.. Is this permissible?
Walaikum assalam wa rahmatullah,
There is nothing wrong with decorations that are within the limits of moderation, without excess or wastefulness.
Wassalam,