The Messenger of Allah ﷺ said during the Farewell Pilgrimage, "Shall I tell you who the Muslim is? He is the one from whose tongue and hand other Muslims are safe. The believer is the one whom people trust with their wealth and their lives. The emigrant is the one who forsakes sins and wrongdoings. And the Mujahid is the one who struggles against his own self in obedience to Allah ."
أن رسول الله ﷺ قال في حجة الوداع: ألا أخبركم من المسلم؟ من سلم المسلمون من لسانه ويده، والمؤمن من أمنه الناس على أموالهم وأنفسهم، والمهاجر من هجر الخطايا والذنوب، والمجاهد من جاهد نفسه في طاعة الله عز وجل.
Narrated by Ahmad (23968, 23958), Ibn Majah (3934), Bazzar (3752), Ibn Hibban (4862), and Tabarani in Kabir (12/309), all of them through various routes from Abu Hani Humayd bin Lahiq Khawlani, from Amr bin Malik Janabi, who said, Fadala bin Ubayd narrated to me, and he related it. The wording given is Ahmad's. Its chain is sahih, and it is mentioned in the book of Hajj, chapter on the sermon of the Prophet ﷺ at the Farewell Hajj.On this subject there is also a narration from Bilal bin Harith Muzani, from the Prophet ﷺ, who said, "The Muslim is he from whose tongue and hand the Muslims are safe." This was narrated by Tabarani in Kabir (1/369) and in Awsat, Majma Bahrayn (54), and by Hakim (3/517), both through the route of Abdul-Aziz bin Muhammad Darawardi, from Muhammad bin Amr bin Alqama, from his father, from his grandfather, from Bilal bin Harith Muzani, who said, and he related it. Amr bin Alqama is Ibn Waqqas Laythi, whom no one has confirmed as reliable except that Ibn Hibban mentioned him among his trustworthy narrators, and no one narrated from him except his son Muhammad bin Amr bin Alqama. For this reason Hafiz said of him, "Acceptable," meaning when corroborated, otherwise his hadith is weak, and I have not found any corroboration for him.On this subject there is also a narration from Umayr bin Qatada Laythi, who said, While I was sitting with the Messenger of Allah ﷺ, a man came and said, "O Messenger of Allah, what is Islam?" He said, "Feeding food and gentle speech." He said, "O Messenger of Allah, what is faith?" He said, "Generosity and patience." He said, "O Messenger of Allah, which form of Islam is best?" He said, "That from which the tongue and hand of Muslims are safe." He said, "O Messenger of Allah, which of the believers has the most complete faith?" He said, "The one with the best character." He said, "O Messenger of Allah, which jihad is best?" He said, "Those who strive with their wealth and their lives in the path of Allah." He said, "O Messenger of Allah, which charity is best?" He said, "The effort of one who has little." He said, "O Messenger of Allah, which prayer is best?" He said, "Length of standing in devotion."This was narrated by Ibn Abu Khaythama in his Tarikh (1923), from Suwayd bin Ibrahim Jahdari, from Abdullah bin Ubayd bin Umayr bin Qatada, from his father, from his grandfather Umayr bin Qatada Laythi, who said, and he related it. Abu Naeem also narrated it in abridged form in Hilya (3/357), through the route of Suwayd bin Ibrahim with this same chain, and said, "This hadith is uniquely narrated by Suwayd as connected, from Abdullah, while Salih bin Kaysan narrated it from Zuhri, from Abdullah, from his father, without mentioning his grandfather," meaning as a mursal narration.I say, the correct view is that it is mursal, because Zuhri is a reliable, precise, and authoritative narrator, while Suwayd bin Ibrahim Jahdari, Abu Hatim Hannat, is a disputed figure. Ibn Main said, "I hope there is no harm in him," and on another occasion said, "Reliable." Abu Zura said, "He is not strong, his hadith is that of truthful people." Bazzar said, "There is no harm in him." Nasai weakened him, as did Ibn Main in one of his statements, as well as Aqeeli, Ibn Hibban, and others.