Kuraib says: Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) saw Abdullah bin Harith praying in such a state that his hair was tied at the back of his head. He began to untie his hair, and he (Abdullah bin Harith) allowed him to do so. But after the prayer, he turned to Sayyiduna Ibn Abbas (may Allah be pleased with him) and said: "What did you have to do with my head?" He replied: "I heard the Messenger of Allah (peace and blessings be upon him) say: Whoever prays in this manner, his example is like that of a man who performs prayer with his hands tied."