"Whoever the Muslims are safe from his tongue and his hand."(1)

‌‌12 - Chapter: Which aspect of Islam is best

5000 - Qutaybah ibn Sa'id informed us, saying: Al-Layth narrated to us, from Yazid ibn Abi Habib, from Abi al-Khayr, from Abdullah ibn Amr, that a man asked the Messenger of Allah, peace and blessings be upon him: "Which aspect of Islam is best?" He said: "You feed the food, and you greet with peace those you know and those you do not know."(3)

‌‌13 - Chapter: Upon how many pillars Islam is built

5001 - Muhammad ibn Abdullah ibn Ammar informed us, saying: Al-Mu'afa — meaning Ibn Imran — narrated to us, from Hanzalah ibn Abi Sufyan, from Ikrimah ibn Khalid, from Ibn Umar, that a man said to him: "Will you not go out for battle?" He said: I heard the Messenger of Allah, peace and blessings be upon him, say: "Islam is built upon five: the testimony that there is no god but Allah, and the establishment of prayer,--------------------------------------------
(1) Its chain of transmission is authentic.
It was also recorded by al-Bukhari (11) and Muslim (42), both from Sa'id ibn Yahya, with this chain of transmission.
It was also recorded by Muslim (42), al-Tirmidhi (2504) and (2628) via the route of Abu Usamah, from Burayd ibn Abdullah, with it.
Al-Sindi said: His saying: "Which aspect of Islam is best?" i.e.: which of its qualities and deeds is best, i.e.: most beneficial to others, and a cause of pleasing Him.
(2) In (R): and upon those whom.
(3) Its chain of transmission is authentic. Al-Layth: he is Ibn Sa'd, and Abu al-Khayr: he is Marthad ibn Abdullah al-Yazani.
It was also recorded by al-Bukhari (28), Muslim (39), Abu Dawud (5194), and Ibn Hibban (505) via the route of Qutaybah, with this chain of transmission.
It was also recorded by Ahmad (6581), al-Bukhari (12), Muslim (39), and Ibn Majah (3253) via multiple routes from al-Layth ibn Sa'd, with it.