What is the Amount Najasah Ghalizah that Invalidates Prayer?

The amount of najasah that invalidates prayer depends on whether the najasah is something wet or dry as follows:

If the najasah ghalizah is a dry, it should be lighter than three grams. If it is more than three grams, it invalidates the prayer.

If it is wet, it should not cover an area greater than the palm of a hand. The najasah that has wetted an area greater than the palm of a hand invalidates the prayer. It is fard to clean that najasah in order to be able to perform a prayer.

Najasah ghalizah less than the amount mentioned above does invalidate the prayer. However, it is sunnah to clean that najasah – if possible.