What is forbidden for one whose ablution has been invalidated?

One whose ablution is invalidated becomes in a state of ritual impurity (حدث), and it is forbidden for a person in this state to perform prayer (الصلاة), circumambulate the Kaaba (الطواف بالبيت), or touch the Qur'an (مس المصحف). Muslims have unanimously agreed on the prohibition of prayer for one who is in a state of ritual impurity. It is also forbidden for such a person to circumambulate the Kaaba, and their circumambulation is not valid. This is the view of Malik, Shafi'i, and Ahmad, in contrast to Abu Hanifa. The evidence for this is that the Prophet, peace and blessings be upon him, said: "Circumambulation of the House (Kaaba) is prayer, except that Allah has permitted speech therein." He also performed ablution for circumambulation and said: "Take your rituals from me."