It is related that 'Abdullah ibn 'Umar reported that 'Umar went with the Messenger of Allah, may Allah bless him and grant him peace, with a group to visit Ibn Sayyad. They found him playing with some children in the hills of Banu Maghala. Ibn Sayyad, who was approaching puberty, did not notice them until the Prophet, may Allah bless him and grant him peace, patted him with his hand and then said to him, 'Do you testify that I am the Messenger of Allah?' Ibn Sayyad looked at him and said, 'I testify that you are the Messenger of the unlettered.' Ibn Sayyad said to the Prophet, 'Do you testify that I am the Messenger of Allah?' He refuted it and said, 'I have believed in Allah and His Messengers.' Then he said to him, 'What dreams do you have?' Ibn Sayyad replied, 'Both truthful people and liars come to me.' The Prophet, may Allah bless him and grant him peace, said, 'You are in a state of confusion.' Then the Prophet, may Allah bless him and grant him peace, said to him, 'I am concealing something from you.' Ibn Sayyad said, 'It is just smoke.' He said, 'Shame on you! You will not go too far.' 'Umar said, 'Messenger of Allah, let me cut his head off?' The Prophet, may Allah bless him and grant him peace, said, 'If it is him (i.e. the Dajjal), you will not be able to get the better of him. If it is not him, there is no point in killing him.'"

I said, “O Messenger of Allah, tell me of an act which will take me into Paradise and will keep me away from the Hellfire.” He (peace and blessings of Allah be upon him) said, “You have asked me about a great matter, yet it is easy for him for whom Allah makes it easy: worship Allah, without associating any partners with Him; establish the prayer; pay the zakat; fast in Ramadhan; and make the pilgrimage to the House.” Then he (peace and blessings of Allah be upon him) said, “Shall I not guide you towards the means of goodness? Fasting is a shield; charity wipes away sin as water extinguishes fire; and the praying of a man in the depths of the night.” Then he (peace and blessings of Allah be upon him) recited: “[Those] who forsake their beds, to invoke their Lord in fear and hope, and they spend (charity in Allah’s cause) out of what We have bestowed on them. No person knows what is kept hidden for them of joy as a reward for what they used to do.” [as-Sajdah, 16-17] Then he (peace and blessings of Allah be upon him) said, “Shall I not inform you of the head of the matter, its pillar and its peak?” I said, “Yes, O Messenger of Allah.” He (peace and blessings of Allah be upon him) said, “The head of the matter is Islam, its pillar is the prayer and its peak is jihad.” Then he (peace and blessings of Allah be upon him) said, “Shall I not tell you of the foundation of all of that?” I said, “Yes, O Messenger of Allah.” So he took hold of his tongue and said, “Restrain this.” I said, “O Prophet of Allah, will we be taken to account for what we say with it?” He (peace and blessings of Allah be upon him) said, “May your mother be bereaved of you, O Muadh! Is there anything that throws people into the Hellfire upon their faces — or: on their noses — except the harvests of their tongues?” It was related by at-Tirmidhi, who said it was a good and sound hadeeth.