All praise is due to Allaah. It is not permissible to take the masaajid as places of selling, trading, and their like from the worldly affairs, in which the voices are raised. Because the masaajid… they were built for the remembrance of Allaah, recitation of the Qur’aan and making of the salaat, in them.
But it is permissible to speak a little about worldly matters as long as it does not distract the reciters (of the Qur’aan) or the one’s making the salaat.
And with Allaah is all tawfeeq. And may the peace and blessings of Allaah be upon our Prophet Muhammad and on his family and on his companions.