The Sahabah (may Allah be pleased with them) were keen to learn the Prophet’s Sunnah and teach it to the Tabi‘in, so that the rulings of religion would become deeply rooted in a correct manner and would be handed down from one generation to the next. In this hadith, the Tabi‘i ‘Amr ibn Yahya narrates from his father that a man – who was the grandfather of ‘Amr ibn Yahya; his name was ‘Umarah ibn Abi Hasan al-Mazini, as is mentioned in the reports – asked the Sahabi ‘Abdullah ibn Zayd (may Allah be pleased with him) how the Prophet (blessings and peace of Allah be upon him) used to do wudu’, according to what he had seen him do. ‘Abdullah ibn Zayd (may Allah be pleased with him) responded to his request and called for water, so that he could give him a practical demonstration of how wudu’ was to be done. He poured water on his hands and washed them twice before starting to do wudu’. Then he cleaned his mouth by moving water around in his mouth, then spitting it out. He cleaned his nose three times, sniffing up water then expelling it, which means that he took water into his nose to clean the inside of it. Then he washed his face three times. The definition of the face is from the hairline to the bottom of the chin, and from one earlobe to the other, right and left. Then he washed his hands and forearms up to the elbows, washing each one twice, by way of showing the easier way and to highlight the fact that it is permissible to do that twice. Then he wiped his head once with both hands, front and back. In other words, he put his hands on the front of his head, then brought them to the back of his head, until they reached the nape of his neck, and he brought them back to the front of the head. Wiping is less than washing. What is meant by the head is the place where the hair grows. Then he washed his feet up to the ankles, as is proven in the reports. This hadith indicates that the learner may ask one who has knowledge, and teaching may be done by demonstrating actions. It also indicates that the entire head is to be wiped..