It is narrated from Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) stood at "al-Jabiyah" and said: May Allah have mercy on a man who heard my words and retained them. I saw the Messenger of Allah (peace and blessings be upon him) standing among us just as I am standing, then he said: "Safeguard me with regard to my Companions (their honour), then those who come after them, then those who come after them (he said it three times). Then turmoil will increase and lying will appear; a man will give testimony though his testimony was not sought, and he will swear an oath though no oath was asked of him. Whoever of you wants the very centre of Paradise, let him hold to the Jama'ah (the united body of Muslims), for Satan is with the one who is alone, and he is further from two. Let no man be alone with a woman, for Satan is the third of them. Whoever is pleased by his good deed and grieved by his bad deed, he is a believer." The second hadith by which the scholars argued that consensus (ijma') is a proof is a hadith narrated with disagreement from al-Mu'tamir bin Sulayman in seven ways; the first of them is as follows.