Is it disliked to wipe dust from the forehead after prayer?

There is no basis for wiping the face after ablution (wudu'). It is disliked to do so before concluding the prayer with the salām, because the Prophet (peace be upon him) prayed the Fajr prayer on a rainy night, and there were traces of water and mud on him. This indicates that it is better not to wipe (the face) before finishing the prayer.